choose the most suitable modal verb: sometimes more than one answer is correct

1. I think you_____wear that dress. It doesn't suit you.

   1.   ?    don't have to
   2.   ?    must
   3.   ?    shouldn't

2. We ____________take our food to school. We went to the canteen
   

   1.   ?    had to
   2.   ?    didn't have to
   3.   ?    didn't need to

3. All children_________fasten their seatbelts when travelling by car.

   1.   ?    have to
   2.   ?    should
   3.   ?    must

4. You_________drink that. It's poison.

   1.   ?    must
   2.   ?    should
   3.   ?    mustn't

5. ________I stay and help you or you can do it alone?

   1.   ?    Should
   2.   ?    Must
   3.   ?    Need

6. You________be very rich to go skiing nowadays.

   1.   ?    mustn't
   2.   ?    needn't
   3.   ?    don't have to

7. I can't go out now. I____________do my homework, my mummy tells me.

   1.   ?    should
   2.   ?    have to
   3.   ?    must

8. We________do so many things around the house, that we couldn't call you.

   1.   ?    did have
   2.   ?    had to
   3.   ?    must

9. You________use your flash inside the Museum, it's forbidden.
   

   1.   ?    need to
   2.   ?    must
   3.   ?    mustn't

10. We have to be cautious.We_________try and cross the river now.
    

    1.   ?    have to
    2.   ?    should
    3.   ?    shouldn't