Who -- the telephone It --- by Amy .A was invented was inven

问题描述:

Who __ the telephone It ___ by Amy .A was invented was invented B invent
Who __ the telephone It ___ by Amy .A was invented was invented B invented was invented
1个回答 分类:英语 2014-10-06

问题解答:

我来补答
选B,第一个who做主语,用主动,invented是过去式.第二个空,it主语,用被动,用was.invent:发明(动词)
 
 
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