Unless _________ by the police, you should keep silent over the accident.A.asked
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Unless _________ by the police, you should keep silent over the accident.A.asked | B.ask | C.being asked | D.having asked |
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答案
A |
解析
试题分析:从by the police可以说明you与ask之间构成被动关系,故排除BD,另外非谓语动词的省略往往会省略从句的主语和部分谓语,即be动词,故选答案A,也可以将状语从句补全,即Unless you are asked by the police,然后再去掉you are,即可得知答案。 点评:状语从句的省略同时具备下列两个条件:①主句和从句的主语一致,或从句主语为it;②从句主要动词是be的某种形式。从句中的主语和be动词常可省略 |
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