#[64] The toy car ______ on the top of the cupboard,so the little boy couldn't reach it.

问题描述:

#[64] The toy car ______ on the top of the cupboard,so the little boy couldn't reach it.
A.was put
B.was putting
C.has put
D.have been put
翻译,并分析.

The toy car 作主语,是“被放在……”,被动语态,动词结构是:be 动词+过去分词,was put 正是如此
D.have been put人称和数不对,car为单数不用have ,而应用has