一道英语选择题、麻烦给简讲解一下The monkey was seen _________off the tree .A jump B jumps C jumped D to jump

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一道英语选择题、麻烦给简讲解一下The monkey was seen _________off the tree .A jump B jumps C jumped D to jump
一道英语选择题、麻烦给简讲解一下
The monkey was seen _________off the tree .
A jump B jumps C jumped D to jump

一道英语选择题、麻烦给简讲解一下The monkey was seen _________off the tree .A jump B jumps C jumped D to jump
答案是D.这个句子是see somebody do/doing something的被动结构.在主动结构中,动词不定式作动词see的宾语补足语的时候,动词不定式符号to要省略,但再把它变成被动结构的时候,动词不定式符号to要还原.因为这是动词不定式不是做宾语补足语了,而是做主语补足语.

D,动词不定式作主语补足语.the monkey 主语.was seen 谓语,to jump off the tree 是说猴子从树上跳下来.

The monkey was seen _to jump_off the tree .
A jump B jumps C jumped D to jump
被动语态后的动词用带to不定式。
我是从事英语的,不明再问。