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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: B. is studying
Explanation: The present continuous tense is used for actions happening right now. “She is studying” correctly expresses that she is engaged in studying at the moment. The simple present “studies” is incorrect because it refers to habitual actions, not a current activity.
Q.2
Correct Option: A. play
Explanation: The simple present tense is used for habitual actions. “They play basketball on Fridays” correctly indicates a regular routine. The continuous tenses are incorrect because they imply an action happening right now, rather than a habitual one.
Q.3
Correct Option: C. have finished
Explanation: The present perfect tense “have finished” is used to indicate an action that has been completed recently and has relevance to the present. “Finish” (simple present) is incorrect as it does not indicate recent completion.
Q.4
Correct Option: B. am cooking
Explanation: The present continuous tense “am cooking” is used to describe an action happening at the moment. The other options do not correctly indicate an ongoing activity.
Q.5
Correct Option: C. haven’t read
Explanation: The present perfect negative “haven’t read” is used for an action that has not happened up to the present moment. “Don’t read” is incorrect because it suggests a general habit rather than a specific past action.
Q.6
Correct Option: A. speaks
Explanation: The simple present tense is used for general facts and habitual actions. “She speaks French, Spanish, and German” correctly indicates her ability to speak these languages. The continuous and perfect tenses are unnecessary.
Q.7
Correct Option: C. has written
Explanation: The present perfect tense “has written” is used for actions completed at an unspecified time in the past but still relevant. “Writes” (simple present) is incorrect because it suggests a habitual action rather than a completed one.
Q.8
Correct Option: C. have been waiting
Explanation: The present perfect continuous tense “have been waiting” indicates an action that started in the past and is still continuing. The other options do not accurately convey the duration of waiting.
Q.9
Correct Option: C. has been sick
Explanation: The present perfect tense “has been sick” correctly expresses an illness that started in the past and continues in the present. The other options are grammatically incorrect or do not convey the correct meaning.
Q.10
Correct Option: C. has been sleeping
Explanation: The present perfect continuous tense “has been sleeping” shows an action that started in the past and continues in the present. “Sleeps” (simple present) is incorrect as it refers to a habitual action.
Q.11
Correct Option: A. bought
Explanation: The past simple tense “bought” is used for a completed action in the past. The other options imply continuous or past-perfect actions, which are incorrect in this case.
Q.12
Correct Option: A. was cooking
Explanation: The past continuous tense “was cooking” is used to describe an action that was happening when another action occurred. The other options do not fit the timeline of events.
Q.13
Correct Option: B. had already left
Explanation: The past perfect tense “had already left” is used because it refers to an action completed before another past event. The other options do not accurately reflect this sequence.
Q.14
Correct Option: C. had been smoking
Explanation: The past perfect continuous tense “had been smoking” shows an action that was happening for a duration before another past event. The other options do not indicate this duration.
Q.15
Correct Option: A. didn’t call
Explanation: The past simple tense “didn’t call” is correct because it refers to a completed action in the past. The other options do not fit the context of the sentence.
Q.16
Correct Option: A. attacked
Explanation: The past simple tense “attacked” is used for a completed action in the past. The other options do not correctly describe the sequence of events.
Q.17
Correct Option: B. was sleeping
Explanation: The past continuous tense “was sleeping” is used to describe an ongoing action in the past. “Slept” (simple past) is incorrect because it suggests a completed action.
Q.18
Correct Option: C. hadn’t visited
Explanation: The past perfect negative “hadn’t visited” correctly indicates that the action had not happened before another past event. The other options do not correctly fit the sequence.
Q.19
Correct Option: C. had been waiting
Explanation: The past perfect continuous tense “had been waiting” indicates that the action started before another past event and continued for some time.
Q.20
Correct Option: A. discovered
Explanation: The simple past tense “discovered” is correct for a completed event in history. The past perfect and continuous tenses are unnecessary here.
Q.21
Correct Option: B. was walking
Explanation: The past continuous tense “was walking” is used to describe an action that was happening when another action (the phone rang) interrupted it. The simple past “walked” would not correctly show the interruption.
Q.22
Correct Option: C. had never seen
Explanation: The past perfect tense “had never seen” correctly expresses an action that had not happened before another past event. The simple past “never saw” does not correctly establish the sequence.
Q.23
Correct Option: A. arrived
Explanation: The past simple tense “arrived” is used for a completed action in the past. The other options involve continuous or perfect tenses, which are unnecessary here.
Q.24
Correct Option: C. had been feeling
Explanation: The past perfect continuous “had been feeling” is used to describe an ongoing state before another past action. The simple past “felt” would not indicate the duration of the feeling.
Q.25
Correct Option: B. didn’t recognize
Explanation: The past simple “didn’t recognize” is correct for a completed action in the past. The other options do not fit the context correctly.
Q.26
Correct Option: C. will finish
Explanation: The simple future “will finish” is used to indicate an action that will be completed in the future. The other options do not correctly express this future action.
Q.27
Correct Option: B. will be working
Explanation: The future continuous “will be working” describes an action that will be ongoing at a specific time in the future. The other tenses do not indicate this ongoing nature.
Q.28
Correct Option: A. will have completed
Explanation: The future perfect “will have completed” is used to indicate that an action will be finished before a specific time in the future.
Q.29
Correct Option: C. will have been living
Explanation: The future perfect continuous “will have been living” indicates a duration of time leading up to a specific point in the future.
Q.30
Correct Option: B. is going to rain
Explanation: “Is going to rain” is correct because it expresses a future event based on present evidence (e.g., dark clouds). The simple future “will rain” is more general and lacks immediate evidence.
Q.31
Correct Option: A. will help
Explanation: The simple future “will help” is used for spontaneous decisions made at the moment of speaking. The other options do not fit the context.
Q.32
Correct Option: B. will be arriving
Explanation: The future continuous “will be arriving” describes an action that will be in progress at a specific time in the future.
Q.33
Correct Option: C. will have gone
Explanation: The future perfect “will have gone” is used to describe an action that will be completed before another future event.
Q.34
Correct Option: A. will be studying
Explanation: The future continuous “will be studying” describes an ongoing action in the future. “Studies” is incorrect because it refers to habitual actions rather than a specific future event.
Q.35
Correct Option: B. has just arrived
Explanation: The present perfect “has just arrived” is used for an action that happened recently and has relevance to the present moment. The simple past “arrived” would not indicate recent completion.
Q.36
Correct Option: C. was playing
Explanation: The past continuous “was playing” is used to describe an action that was in progress when another action occurred. The simple past “played” does not correctly indicate the interruption.
Q.37
Correct Option: A. had been waiting
Explanation: The past perfect continuous “had been waiting” is used to show that the action of waiting started before another past event and continued for some time.
Q.38
Correct Option: C. hadn’t met
Explanation: The past perfect negative “hadn’t met” is correct because it indicates that the action had not happened before another past event.
Q.39
Correct Option: B. will have finished
Explanation: The future perfect “will have finished” is used to describe an action that will be completed by a specific time in the future.
Q.40
Correct Option: C. is meeting
Explanation: The present continuous “is meeting” is used for planned future arrangements. The simple present “meets” would not indicate a scheduled plan.
Q.41
Correct Option: A. have known
Explanation: The present perfect “have known” is correct for a state that began in the past and continues in the present. The simple past “knew” does not indicate continuity.
Q.42
Correct Option: B. was being
Explanation: The past continuous passive “was being” correctly expresses an ongoing past action. The other options do not correctly indicate the passive nature of the sentence.
Q.43
Correct Option: C. have been trying
Explanation: The present perfect continuous “have been trying” is used for an ongoing action that started in the past and continues in the present.
Q.44
Correct Option: A. will have been working
Explanation: The future perfect continuous “will have been working” is used to indicate an ongoing action leading up to a specific future time.
Q.45
Correct Option: B. will be finished
Explanation: The future perfect “will be finished” correctly expresses that an action will be completed at a specific time in the future.
Q.46
Correct Option: C. were talking
Explanation: The past continuous “were talking” is used to describe an action that was ongoing when another event occurred.
Q.47
Correct Option: B. had completed
Explanation: The past perfect “had completed” is used for an action finished before another past event.
Q.48
Correct Option: C. hasn’t spoken
Explanation: The present perfect negative “hasn’t spoken” correctly indicates an action that has not occurred up to the present.
Q.49
Correct Option: A. are going
Explanation: The present continuous “are going” is used for planned future events.
Q.50
Correct Option: B. had been raining
Explanation: The past perfect continuous “had been raining” is used to describe an ongoing action before another past event.
