When        if he had any idea what the novel was about, Jack kept silent. He       have read it very carefully.

A. asking; needn't           B. asking; shouldn't     C. asked; can’t          D. asked; mustnt

 

【答案】

C

【解析】

試題分析:原句意思是當被問及他認為這部小說寫了些什么,杰克就保持沉默。謂語動詞ask和主語Jack是被動關系 。needn't have done 表示過去做了不必做的事情shouldn’t have done 本不該做某事can’t have done 表示對過去某種情況的懷疑或不確定mustn’t have done禁止做,故選C,最符合題意。

考點:本題重點考查情態(tài)動詞的用法和非謂語動詞。

點評:要掌握情態(tài)動詞的用法,謂語動詞ask和主語Jack是被動關系 。needn't have done 表示過去做了不必做的事情shouldn’t have done 本不該做某事can’t have done 表示對過去某種情況的懷疑或不確定mustn’t have done禁止做。

 

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