25. - 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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統計： 尚無統計資料

詳解 (共 1 筆)

#3065037

問的人問Sam 今天做完功課了嗎?答的人說我不知道。因為不知道，所以完成式顯然是不對的(B)、(D)刪掉

而did也有達成的意思，所以選(C)他當時正在做


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