— Has Sam finished his homework today?
— I have no idea. He _____ it this morning.

A. did
B. has done
C. was doing
D. had done
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—Has Sam finished his homework today?

—I have no idea. He ________ it this morning.

A. did      B. has done   C. was doing D. had done

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3. – Has Sam finished his homework today?

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科目：高中英語 來源： 題型：

― Has Sam finished his homework today?

―I have no idea. He  ______  it this morning.

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查看答案和解析>>

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--   Has Sam finished his homework today?

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   A. did             B. has done        C. was doing       D. had done

查看答案和解析>>


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