Tenses - Study Mode

[#181] Fill in the blank with the most appropriate word. The electric light bulb _________ by Edison.
Correct Answer

(D) was invented

Explanation

Solution: In the sentence, "The electric light bulb was invented by Edison," the past simple tense "was invented" is used to describe a specific action that occurred in the past – the invention of the electric light bulb by Edison. The correct form for the sentence is "The electric light bulb was invented by Edison." The other options are not suitable because they do not use the correct verb form or tense: Option A: invented This option uses the past participle "invented," but it is not in the correct form to complete the sentence. Option B: invents This option uses the present tense "invents," which is not appropriate for describing a past action. Option C: is invented This option uses the present simple passive tense "is invented," but it does not accurately convey the past action. Therefore, the correct answer is Option D: was invented .

[#182] The peace which Istanbul once . . . . . . . ., . . . . . . . . away.
Correct Answer

(B) knew/had been swept

Explanation

Solution: In the sentence, "The peace which Istanbul once knew , had been swept away," the past tense "knew" and the past perfect passive tense "had been swept" are used to describe two past actions, with one action occurring before the other. The correct form for the sentence is "The peace which Istanbul once knew , had been swept away." The other options are not suitable because they do not use the correct verb forms or tenses: Option A: know/has been swept This option combines the present tense "know" with the present perfect passive tense "has been swept," which is not suitable for describing past actions. Option C: knew/has been swept This option combines the past tense "knew" with the present perfect passive tense "has been swept," which does not accurately represent the sequence of events. Option D: knows/will sweep This option uses the present tense "knows" and the future tense "will sweep," which is not appropriate for describing past actions and their sequence. Option E: has known/swept This option combines the present perfect tense "has known" with the base form "swept," which does not correctly convey the past perfect passive tense. Therefore, the correct answer is Option B: knew/had been swept .

[#183] Use the right form of the verb: 'Where ___ (Martin/come) from?' 'He's Scottish.'
Correct Answer

(D) does Martin come

Explanation

Solution: In the sentence, "'Where does Martin come from?' 'He's Scottish,'" the present simple tense is used to ask about Martin's place of origin. The correct form for the sentence is "Where does Martin come from?" The other options are not suitable because they do not use the correct verb form or tense: Option A: do Martin come This option combines the present simple tense "do" with the base form "come," which is not grammatically correct. Option B: do Martin comes This option combines the present simple tense "do" with the present simple third-person singular form "comes," which is not appropriate for the question. Option C: does Martin comes This option uses the present simple tense "does" with the present simple third-person singular form "comes," which is also not appropriate for the question. Therefore, the correct answer is Option D: does Martin come .

[#184] They . . . . . . . . a football match in the evening. What . . . . . . . . you do?
Correct Answer

(A) Were playing/do

Explanation

Solution: In the sentence, "They were playing a football match in the evening. What do you do?" the past continuous tense "were playing" is used to describe an action that was happening in the past, and the base form "do" is used to ask about a general action. This combination of tenses is appropriate for the context. The correct form for the sentence is "They were playing a football match in the evening. What do you do?" The other options are not suitable because they do not use the correct verb forms or tenses: Option B: Played/did This option combines the past simple tense "played" with the past simple tense "did," which does not accurately convey the sequence of events or the context of the question. Option C: Have played/did This option combines the present perfect tense "have played" with the past simple tense "did," which is not appropriate for the context. Option D: Are playing/will This option combines the present continuous tense "are playing" with the future tense "will," which does not accurately match the intended meaning of the question. Therefore, the correct answer is Option A: Were playing/do .

[#185] Tim . . . . . . . . a master's degree as soon as he . . . . . . . . to Canada.
Correct Answer

(B) began/returned

Explanation

Solution: In the sentence, "Tim began a master's degree as soon as he returned to Canada," the past simple tense "began" is used to describe an action that happened in the past (starting a master's degree), and the past simple tense "returned" is used to describe another action that also happened in the past (coming back to Canada). The context suggests that both actions occurred sequentially. The correct form for the sentence is "Tim began a master's degree as soon as he returned to Canada." The other options are not suitable because they do not use the correct verb forms or tenses: Option A: has begun/is returning This option combines the present perfect tense "has begun" with the present continuous tense "is returning," which does not accurately convey the sequence of events in the past. Option C: is beginning/returned This option combines the present continuous tense "is beginning" with the past simple tense "returned," which is not appropriate for describing a sequence of actions in the past. Option D: was beginning/returns This option combines the past continuous tense "was beginning" with the present simple tense "returns," which is not suitable for describing past actions and their sequence. Option E: begins/has returned This option combines the present simple tense "begins" with the present perfect tense "has returned," which does not accurately convey the sequence of past actions. Therefore, the correct answer is Option B: began/returned .