1.You____________________________(本不必提起) it.
2.I________________(不得不参加) an important meeting this afternoon.
3.You______________(一定不能玩) with fire，or you’ll get burnt.
4.He______________________________(本该完成工作)in such a long time.
5.You________________________________(不必归还) the book now. You can keep it until next week if you like.
6.Something is wrong with my bike. So my bike________________________________ (需要修理).
7.Mary________________________________(本不该说) the words, but she wanted to warn you against that man.
8.The light is on in his office. He____________________(一定在工作) there now.
答案 1.needn’t have mentioned 2.have to attend 3.mustn’t play 4.ought to/should have finished the work 5.needn’t/don’t have to return 6.needs repairing/to be repaired 7.shouldn’t/oughtn’t to have said 8.must be working
