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By the time I got to the office, the meeting ______.
A.had begunB.began
C.was beginningD.would begin
A

試題分析:考察時態(tài)。本句中的關(guān)鍵詞是by到…時為止;該詞與完成時連用。本句中by后面接的時間狀語是I got to the office這是一個過去時的時間,故使用過去我才是。句意:到外面來的辦公室的時候,會議已經(jīng)開始了。故A正確。
點評:連詞by到…時為止;該詞經(jīng)常與完成時連用,如果后面是現(xiàn)在的時間,句中就使用現(xiàn)在完成時;如果后面是過去的時間,就使用過去完成時;如果后面是將來的時間,就使用將來完成時。
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