When how old he was, he kept silent.A. askingB. askedC. to be askedD. ask

发布时间：2020-08-17 06:28:26

When      how old he was, he kept silent.
A. asking
B. asked
C. to be asked
D. ask

网友回答

A. asking
(答案→)B. asked
C. to be asked
D. ask
解析：考查非谓语动词。句意：当被问到多大了的时候，他保持沉默。he与ask是动宾关系，应该用过去分词，排除A、D；C项表示将来，与题意不符。故选B。
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