首页 > 留学知识库

问题: 情态动词

-Does your class teacher know what has really happened to the monitor?
-No,but I think she _____ the truth.
A.needs to be told
B.need be told
C.needs to tell
D.is needed to tell
答案是A,但请问为什么B不可选
如果可以请帮忙解释一下need的用法,谢谢

解答:

选择A的原因是:

此处需要用“被动语态”
而A:needs to be told是表示“被动语态”的被动形式

该题的考点是“被动语态”,不是情态动词