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I don’t know when my son __________back, but when he __________back ,I’ll give you a call

A.comes, comes                          B.will come, will come

C.comes ,will come                        D.will come, comes

 

【答案】

D

【解析】

试题分析:此题重点考查时态,第一句由连词when引导的宾语从句,“我不知道我儿子什么时候要来”用一般将来时;第二句由when引导的时间状语从句,主句用将来时从句用一般现在时表将来,故选D

考点:由when引导的宾语从句和时间状语从句

点评:在英语中由if(是否)/when(何时) 引导的宾语从句,主句用现在时,从句一般用将来时;由if(如果)/when(何时) 引导的条件状语从句和时间状语从句中,主句用将来时,从句用一般现在时表将来

 

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