The time is too little for the students_______

The time is too little for the students_______
A to finish it
B to finish
C finishing it
D to finish to do it
我知道答案是A,为什么B不可以,一定是A
最好把这类题的解题思路讲一下

peace198089 1年前已收到2个回答举报

jiazhou2 幼苗

共回答了16个问题采纳率：93.8% 举报

因为你这句话说的是时间太短了,学生完不成的.那完不成什么呢?句子里面没有,那么就要加个代词作.
这个it指的不是time.如果后面加it指的是前面提到的东西就不要it.这样主语就重复了.

1年前

boyish_voices 幼苗

共回答了473个问题举报

to finish what没有，所以要it作为形式宾语
前面如果有提到做得事情，那it可以省去

1年前

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