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 2 筆)

#3672376
was doing 持續一段時間
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#7153474
你好！這是一道關於動詞時態（Tense）...
(共 2098 字，隱藏中）
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