题目

一道英语练习题
---Do you often see David_______on the playground?
---No,but he is often seen______ Chinese Kungfu in the park.
A.run,play B.run,to play C.runninf,play D.running,to play

提问时间：2020-10-31

答案

B
主动语态说often see somebody do something,变成被动语态就是somebody is often seen to do something.
注意：用do,是全程性或反复性动作,用doing；是瞬时性或一次性动作.