The train came after he ________ for about half an hour.
(A)had been waiting
(B)was waiting
(C)had been waited
(D)waits
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統計: A(618), B(73), C(170), D(16), E(0) #439252
統計: A(618), B(73), C(170), D(16), E(0) #439252
詳解 (共 1 筆)
#908417
先判斷時態。
車子來(came為過去式)←而此事情比他(he)等待晚發生。因此判斷為過去。D刪去
又,比過去式還更早的時態為【過去完成】所以B.也刪去。
最後文中提到for about half an hour,乃持續一段時間,用進行式。
因此我們可判斷為waiting。
答案:(A)had been waiting
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