—So many problems! I’m tired.—You should try to them by yourself. You are not a child any longer.
I called Mary many times yesterday evening. But I couldn’t get through. Her brother _____ on the phone all the time.
——I haven't got a camera. ——I think you should buy_______. It's useful for you.
——Don’t put the bike_______the teaching building. ——Sorry, I won’t.
_____ people in the world are sending are receiving e-mails every day.
I have never heard______.