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When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.
A．wentB．had goneC．has goneD．was going
A
：本題前半部分中有明確的時間狀語in 1789，表明在過去某個時間發(fā)生了某事，并非表示在過去的過去發(fā)生了某事，故排除B項；go into effect為結束性動詞，不宜用進行時態(tài)。B項為現(xiàn)在完成時，不與表過去的時間狀語連用。
【標簽】動詞時態(tài)
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