After I had finished my work,the teacher gave me a sign__the classroom. A.leave. B.to leave C.le...

题目

After I had finished my work,the teacher gave me a sign__the classroom. A.leave. B.to leave C.le...
After I had finished my work,the teacher gave me a sign__the classroom.
A.leave. B.to leave C.leaving D.left
这题正确答案是B.为什么不选A?
不是give sb. sth.吗?

答案

动词不定式做定语,修饰sign.是你所说的give sb.sth.但有一个动词短语在后面作定语.
A为动词原形,不能在一句话了同时出现两个动词,尤其是前一个用了过去式,后一个用原形.