A: Mum, may I go out to play football for an hour? B: No, you_ . The air outside is not very clean. A. can't B. needn't C. couldn’t
--- Can I have ________ more food? --- Sorry, there’s _______ in the fridge.
--- How many students are there in your school? --- I don’t know, but I’m sure ______ number of the students in my school _____ larger than that in yours.
I like swimming better than climbing, because I think climbing is ________ swimming.
We haven’t got any coffee. Let’s have tea __________.
Don’t say bad words ______ your friends. It’s ________.