—Must we clean the room now?—________. A.No, you mustn’t B.No, you needn’t C.Yes, you need
If prices rise too high, the government has to do something ______ it.
— How long have you _______ this book? — About ten days. I _______ it last month.
— When will the second class begin? — _________ two minutes.
— I’m sorry I can’t find the library book anywhere. — So…I’m afraid you have to _________ it.
— ______ Mary ______ Alice has joined the music club because they have no time. — It’s a pity!