Am I reading a book?
Yes, you are.
Is he going to have dinner alone tonight?
No, he isn't.
Do you study English at school?
Yes, I do. / Yes, we do.
Has Anne found a job yet?
No, she hasn't.
Did the dog bark when you arrived late last night?
No, it didn't.
Did they enjoy the film on TV last night?
No, they didn't.
Are you playing a game?
Yes, I am.
Have I ever travelled to Paris?
Yes, you have.
Does Tom go to school by bus?
No, he doesn't.
Does she work in a TV studio?
No, she doesn't.