下列表达正确的是: . A. one bags B. three boys C. ten boy
_____ a smile on his face, he came into the classroom.
A: Hey, man. You can’t cross the street now. You have to wait _____ the traffic lights turn green. B: Oh, sorry and thank you.
A: Have you got any books on computers? I want to borrow _______. B: Yes, Here you are, but you must return _____ by Friday.
They got married ____ 2010. That means they have been married _____ 2010.
I think the place has changed ______ over the last years.