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Tiểu Cầm Posted 13 years ago
Grammar
Help me solve this question
She must _____ in the garage when we came that's why she didn't hear the bell.
A. have been working B. be working C.have worked D. work
I choose C. but the correction is A. Please explain it to me. thanks very much!
A. have been working B. be working C.have worked D. work
I choose C. but the correction is A. Please explain it to me. thanks very much!
Top answer
The key is 'when we came'. That is a point in past time (simple past) which occurred during the length of time that she was working (progressive aspect)
- The key is 'when we came'.
- That is a point in past time (simple past) which occurred during the length of time that she was working (progressive aspect)
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4 Answers
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The key is 'when we came'. That is a point in past time (simple past) which occurred during the length of time that she was working (progressive aspect)
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I think:
This is the Simple past, action is happening when another action interjected.
In here : She must have been in the garage is happening. => is the action came before => choose have been
we came is the action came after.
This is the Simple past, action is happening when another action interjected.
In here : She must have been in the garage is happening. => is the action came before => choose have been
we came is the action came after.
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Well, I only meet the structure must have v3 used to guess something happened in the past. I have ever known the structure must have v_ing. It's so....extraordinary
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CherryI think:This is the Simple past, action is happening when another action interjected.In here : She must have been in the garage is happening. => is the action came before => choose have been we came is the action came after.you're right, to some extent, Cherry. But the grammar point is always must have v3 (following to what I have studied).
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