The students watched a movie about dolphins.改为一般疑问句,并作否定回答

问题描述:

The students watched a movie about dolphins.改为一般疑问句,并作否定回答

Did the students watch a moive about dolphins?
No,they didn't.
一般疑问句一般用助动词提问,除非之前的陈述句中有系动词或情态动词.