Seventy percent of the students here( )from the countryside A is B are C comes D has comeSeventy percent of the students here( )from the countryside A is B are C comes D has come 请说下理由

问题描述:

Seventy percent of the students here( )from the countryside A is B are C comes D has come
Seventy percent of the students here( )from the countryside
A is B are C comes D has come
请说下理由

B 主语是可数名词。谓语用复数。

B
A要用复数 不行
C不能用单数
D没必要用完成时
空中填are 和 come 都可以