–Sorry, Professor Smith. I didn’t finish the assignment yesterday. --Oh, you _____ have done it as yesterday was the deadline. A. must B, mustn’t C, should D. shouldn’t
It was not a serious illness, and she soon _________ it.
. Be careful when you cross this very busy street. If not, you may _______ run over by a car.
Sarah, hurry up. I’m afraid you wouldn’t have time to ________ before the party.
. Reading is an experience quite different from watching TV; there are pictures in your mind instead of _______ before your eyes.
–I’d like to take a week’s holiday. --_______, we’re too busy.