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He kept looking at her,wondering whether he ________ her som

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He kept looking at her,wondering whether he ________ her somewhere.
A.saw B.has seen C.sees D.had seen
He kept looking at her,wondering whether he ________ her som
答案D 题干句谓语用了一般过去时:wondering…为现在分词短语作伴随情况的状语,其中whether又引导宾语从句,从句谓语动词用过去完成时,表示这一动作发生在过去的过去.查看原帖