Sam’s been doing his homework since 8: 00, ______ he?A. isn’t B. doesn’t C. hasn’t
Zack is ________ newspapers,his mother is ________ TV and his brother is ________ a film.
I have two books.One is for you,and ________ is for her.
—Mum,it’s late.Why are you still here? —Dad hasn’t come back yet.I ________ for him. A.am waiting B.was waiting C.waited
It’s 8 o’clock.The students ________ an English class.
You ________.Don’t talk on the phone.