For each one, choose which is better from the options available.
1. I think you ___ wear that T-shirt. It doesn't suit you.
a. don't have to b. must c. shouldn't
2. When we were kids, ___ take our food to school. We went to the canteen.
a. had to b. didn't have to c. didn't need to
3. All children ___ fasten their seatbelt when travelling by car.
a. have to b. should c. must
4. You ___ drink that! It's poison!
a. must b. should c. mustn't
5. ___ I stay and help you or you can do it alone?
a. should b. must c. have
6. You ___ be very rich to go skiing nowadays.
a. mustn't b. needn't c. don't have to
7. I can't go out now. I ___ do my homework.
a. should b. have to c. must
8. We ___ do so many things around the house, that we couldn't call you.
a. did have b. had to c. must
9. You ___use your flash inside the Museum, it's forbidden.
a. need to b. must c. mustn't
10. We have to be cautious, this looks a bit dangerous! We ___ try and cross the river now.
a. have to b. should c. shouldnt't
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