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
---Could you tell me ________? ---By searching the Internet.
My pen pal from America is coming to visit me. I’m thinking about ______.
I wonder ______ you would like to go hiking with us this weekend.
Could you tell me ?
— Kitty, do you know ______? — Sure, about forty minutes.