We had an anxious couple of weeks, for the results of the experiment.

A.wait B.to be waiting C.waited D.waiting

 

D

【解析】考查伴隨狀語。只有v.-ing形式表示與主句謂語動詞處于同一時段的動作,故只有D正確。C項(xiàng)屬于并列謂語,句中少and,排除。

 

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