While having our dinner, _______. A.the door bell rangB.our newspapers came to t

While having our dinner, _______. A.the door bell rangB.our newspapers came to t

题型:不详难度:来源:
While having our dinner, _______. 
A.the door bell rang
B.our newspapers came to the door
C.we heard the door bell ringing
D.the postman brought several letters to us

答案
C
解析

试题分析:观察句子结构从句为连词+现在分词,说明是状语从句的省略,根据状语从句的省略的条件:主句和从句的主语应一致,又因为是现在分词,故主句的主语应和have构成主动关系,故排除AB,CD主语为人,均可以和have构成主动关系,但D答案不合逻辑,句意。句意,当我们正在吃饭时,门铃响了。
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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