The policeman caught the thief改为一般疑问句,做否定回答为啥

问题描述:

The policeman caught the thief
改为一般疑问句,做否定回答
为啥

Did the policeman catch the thif?
解析:原句中caught是抓的意思,原形是catch.因为它是实义动词,改一般疑问句就用did.
否定:No,he didn't.
(policeman是男的,所以用he)