He delivered mail after () school.选择题

分类: 作业答案 • 2022-01-09 18:02:45

问题描述：

He delivered mail after () school.选择题
He delivered mail after () school.
A.leave B.leaves C.leaving D.left
解释一下选择的原因

答

C after 是介词,后面要跟名词或动词的ing形式.leave 是动词