1. How long will he ........ stay there?
A. must B. should C. have to D. has to
2. Don't let your child ....... with matches.
A. play B. playing C. to play D. plays
3. Our team played well .......... to win the gold medal.
A. too B. that C. so D. enough
4. Oh, that's nice. Where ........... it?
A. do you buy B. are you buy C. did you buy D. you buy
5. You'll ...... cook dinner yourself.
A. ought to B. must C. should D. have to
6. Did you succeed ......... the problem.
A. to solve B. on solving C. in solving D. solving
7. What was wrong with you? Why ........... go to hospital?
A. had you to B. did you have to C. must you D. did you must