he is washing clothes.【一般疑问句,并做否定回答】we are sweeping the floor[一般疑问句,肯定回答】
问题描述:
he is washing clothes.【一般疑问句,并做否定回答】we are sweeping the floor[一般疑问句,肯定回答】
答
Is he washing clothes?
No,he isn't.
Are you sweeping the floor?
Yes,we are.