We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
–I’m sorry I lost your pen, Charlie. --Oh, _________? That’s all right.
_________ in the leg made it impossible for him to walk home.
I used to drink a lot of tea but these days I _________ coffee. A. prefer B. preferred C. have preferred D. am preferring
–What should I do first? --The instructions _________ that you should mix flour with water carefully first.
Pleasant music is often played _________ classes to make students refreshed and relaxed for a while.