题目内容

The old couple walked rather slowly, and could be seen, from time to time, to stop and rest, ________ out to sea.

Ato be staringBstared

Chaving staredDstaring

 

D

【解析】D 考察非谓语动词,stare的逻辑主语是the old couple,所以选择Dstaring选择副词短语,在句中做伴随状语。

 

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