Here is the answer key and explanation for the exercise. Check your answers carefully and review the explanations for any incorrect responses. Practicing questions and correcting mistakes are essential for MDCAT success, as they strengthen your understanding and improve accuracy. Keep learning from your errors to enhance your performance!
Q.1
Correct option: D. could
Explanation: “Could” is used here to make a polite request. It is more formal and appropriate in this context than “can,” which is more casual. “Should” and “would” do not fit the context of asking for permission or making a request.
Q.2
Correct option: B. can
Explanation: “Can” is used to express ability or permission. Since the class is dismissed, students are allowed to leave, making “can” the correct choice. “Should,” “need to,” and “ought to” imply obligation, which is not the intended meaning here.
Q.3
Correct option: D. must
Explanation: “Must” is used to express a strong obligation or necessity. Following court orders is a legal requirement, so “must” is the most appropriate modal verb here. The other options do not convey the same level of obligation.
Q.4
Correct option: C. Would
Explanation: “Would” is used to make polite requests. It is more formal and courteous than “can” or “might.” “Would have” is grammatically incorrect in this context.
Q.5
Correct option: B. must
Explanation: “Must” indicates a strong obligation or necessity. Since he is a colleague, it is necessary or expected to invite him. The other options do not convey the same sense of obligation.
Q.6
Correct option: B. can
Explanation: “Can” is used to give permission. The sentence allows the person to borrow books, so “can” is the correct choice. “Need to,” “have to,” and “ought to” imply obligation, which is not the intended meaning.
Q.7
Correct option: D. must
Explanation: “Must” is used to express a strong certainty or logical conclusion. The speaker is certain that a lot was spent on the grand party. “Might” and “could” express possibility, which is less certain.
Q.8
Correct option: C. could
Explanation: “Could” is used to express possibility or ability in the past. The sentence suggests that he had the ability to complete the project but did not. “Should” and “must” do not fit this context.
Q.9
Correct option: D. shall
Explanation: “Shall” is used to indicate a future action or decision. The sentence suggests a decision about hosting lunch or dinner. “May,” “could,” and “ought to” do not fit this context as well.
Q.10
Correct option: A. must
Explanation: “Must” expresses necessity. Catching the flight requires waking up early, making “must” the correct choice. “Can,” “could,” and “would have” do not convey necessity.
Q.11
Correct option: B. Should
Explanation: “Should” is used to ask for or give advice. The question seeks advice about hiring a tour guide. “Could,” “would,” and “might” do not fit this context.
Q.12
Correct option: C. couldn’t
Explanation: “Couldn’t” expresses inability in the past. The speaker is unable to believe what they are seeing. “Might not,” “must not,” and “shouldn’t” do not convey the same meaning.
Q.13
Correct option: B. ought to
Explanation: “Ought to” is used to express moral obligation or duty. Finishing meals before leaving is presented as the right thing to do. “Dare to,” “could,” and “would” do not fit this context.
Q.14
Correct option: A. must
Explanation: “Must” expresses necessity. The speaker missed an appointment and now feels it is necessary to visit the doctor. “Used to,” “can,” and “could” do not convey necessity.
Q.15
Correct option: D. should
Explanation: “Should” is used to give advice or make a recommendation. The sentence advises asking the mom before submitting the application. “Would,” “could,” and “can” do not fit this context.
Q.16
Correct option: D. would
Explanation: “Would” is used to express a polite or conditional intention. The speaker is expressing a polite appreciation for someone’s presence. “Can,” “should,” and “will have” do not fit this context.
Q.17
Correct option: B. should
Explanation: “Should” is used to express an expectation or duty. The sentence suggests that reading the terms before signing was expected. “Could,” “would,” and “might” do not convey this meaning.
Q.18
Correct option: A. could
Explanation: “Could” is used to express ability in the past. The speaker is recalling their ability to beat others in races during college. “Should,” “can,” and “might” do not fit this context.
Q.19
Correct option: B. might
Explanation: “Might” is used to express possibility. The sentence suggests that people may or may not be interested in learning about his struggle. “Could,” “would,” and “should” do not convey possibility as clearly.
Q.20
Correct option: C. dare to
Explanation: “Dare to” is used to question someone’s courage or audacity. The sentence questions whether the person has the courage to fight the goons. “Ought to,” “might,” and “must” do not fit this context.
Q.21
Correct option: D. ought to
Explanation: “Ought to” expresses moral obligation or duty. As an elder brother, babysitting is presented as a duty. “Will,” “can,” and “could” do not convey this sense of obligation.
Q.22
Correct option: A. should
Explanation: “Should” is used to express a recommendation or good idea. Celebrating big news is presented as the right thing to do. “Could,” “would,” and “might” do not convey this meaning.
Q.23
Correct option: B. wouldn’t
Explanation: “Wouldn’t” is used to express refusal or certainty that something will not happen. The sentence states that she, as an expert, is certain not to make mistakes. “Couldn’t,” “shouldn’t,” and “might not” do not fit as well.
Q.24
Correct option: B. can
Explanation: “Can” is used to ask about ability or possibility. The question asks how assistance can be provided. “Would,” “should,” and “will” do not fit this context.
Q.25
Correct option: D. may
Explanation: “May” is used to express possibility. The sentence suggests that Rohan might arrive soon. “Can,” “would,” and “will” do not convey possibility as clearly.
Q.26
Correct option: D. can
Explanation: “Can” is used to give conditional permission. The sentence allows going to the picnic under certain conditions. “Should,” “could have,” and “would have” do not fit this context.
Q.27
Correct option: B. could have
Explanation: “Could have” is used to express possibility in the past that did not happen. The speaker is saying they had the ability to be there but lacked the address. “Would have,” “should have,” and “might have” do not fit as well.
Q.28
Correct option: B. will
Explanation: “Will” is used to express a definite future action. The speaker has decided to go to Bali, making “will” the correct choice. “Should,” “can,” and “could” do not convey certainty.
Q.29
Correct option: C. ought to
Explanation: “Ought to” expresses duty or obligation. As organizers, welcoming guests is their responsibility. “Could,” “might,” and “would” do not convey this sense of duty.
Q.30
Correct option: B. need not
Explanation: “Need not” is used to indicate that something is not necessary. The sentence states that bringing more food is unnecessary. “Shall not,” “could not,” and “would not” do not fit this context.
Q.31
Correct option: A. must
Explanation: “Must” is used to express a strong certainty or logical conclusion. After a long day, it is logical to assume hunger. “Might,” “need to,” and “should” do not convey the same certainty.
Q.32
Correct option: D. shall
Explanation: “Shall” is used to indicate a future action, especially in formal contexts. The speaker is stating their intention to call later. “Could,” “ought to,” and “dare to” do not fit this context.
Q.33
Correct option: B. Will
Explanation: “Will” is used to ask about someone’s willingness or ability in the future. The question asks if the person can convince him. “Could,” “should,” and “may” do not fit as well.
Q.34
Correct option: B. might not
Explanation: “Might not” is used to express possibility in the negative. The train’s delay makes it possible that they will not reach on time. “Should not,” “could not,” and “need not” do not convey possibility.
Q.35
Correct option: C. should not
Explanation: “Should not” is used to advise against something. The sentence advises against disturbing the committee for trivial matters. “Dare not,” “can not,” and “will not” do not convey advice.
Q.36
Correct option: B. need not
Explanation: “Need not” indicates that something is unnecessary. The sentence states that stress is not required for a non-hectic job. “Can not,” “dare not,” and “will not” do not fit this context.
Q.37
Correct option: A. should
Explanation: “Should” is used to give advice or make a recommendation. The sentence advises being careful with hot soup. “Could,” “would,” and “might” do not convey advice.
Q.38
Correct option: C. can not
Explanation: “Can not” is used to express inability or refusal. The speaker is refusing to tolerate the situation any longer. “Should not,” “will not,” and “may not” do not convey refusal as strongly.
Q.39
Correct option: D. would have
Explanation: “Would have” is used to express a hypothetical past action. The sentence states that they would have apologized if they were at fault. “Could have,” “should have,” and “ought to have” do not fit this context.
Q.40
Correct option: A. used to
Explanation: “Used to” is used to describe past habits or states. The sentence describes teasing each other as a childhood habit. “Need to,” “should,” and “will” do not fit this context.
Q.41
Correct option: C. shall
Explanation: “Shall” is used to express a future action, especially a threat or promise. The speaker is threatening to talk to the guardian if behavior does not improve. “Could have,” “ought to have,” and “should” do not fit this context.
Q.42
Correct option: B. must
Explanation: “Must” is used to express necessity or obligation. Depositing the cheque on time is necessary for clearance. “Dare to,” “might,” and “could” do not convey necessity.
Q.43
Correct option: C. Can
Explanation: “Can” is used to ask for permission. The speaker is asking if they can invite her for a meal. “Would,” “must,” and “need” do not fit this context.
Q.44
Correct option: A. should have
Explanation: “Should have” is used to express an expectation about the past. The sentence suggests that they were expected to decide by now. “Could have,” “will have,” and “ought to have” do not convey this meaning.
Q.45
Correct option: D. can
Explanation: “Can” is used to express ability. The sentence states the ability to afford a new car this year. “Should,” “might,” and “may” do not convey ability.
Q.46
Correct option: C. might
Explanation: “Might” is used to express possibility. The sentence suggests the possibility of taking a detour. “Would,” “should,” and “will” do not convey possibility as clearly.
Q.47
Correct option: B. should
Explanation: “Should” is used to give advice or make a recommendation. The sentence advises paying attention in class. “Can,” “may,” and “might” do not convey advice.
Q.48
Correct option: D. May
Explanation: “May” is used to ask for formal permission. The speaker is asking if they can call the witness. “Could,” “can,” and “should” are less formal in this context.
Q.49
Correct option: A. need to
Explanation: “Need to” is used to express necessity. The speaker must start packing due to limited time. “Might,” “can,” and “could” do not convey necessity.
Q.50
Correct option: A. should not
Explanation: “Should not” is used to advise against something. The sentence advises against touching antique pieces. “Dare not,” “need not,” and “can not” do not convey advice.
