I will have begun to do the work 3 o’clock this afternoon. A. by B. at C. after D. before 选A.句中will have begun提供了一个关键的解题线索.表明应该表示“将来截止时间 的介词.在本题中只有by有这种用法. 查看更多

 

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9. I will have begun to do the work ______ 3 o’clock this afternoon.

A. by  B. at  C. after  D. before

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I will have begun to do the work ______ 3 o’clock this afternoon.

A. by  B. at  C. after  D. before

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I will have begun to do the work ______ 3 o’clock this afternoon.

A. by  B. at  C. after  D. before

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I will have begun to do the work ______ 3 o’clock this afternoon.

A. by           B. at            C. after      D. before

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I will have begun to do the work ______ 3 o’clock this afternoon.

A. by  B. at  C. after  D. before

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