Should Must Have To

Complete with the Should, Must, Have to and neg. !

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should, shouldn't => advice !
must, have to => obligation!
mustn’t => prohibition!
don't have to => lack of necessity

----------------------------------------------------------------------1. We have a lot of work tomorrow. You ___________be late.!
2. You___________ tell anyone what I just told you. It's a secret.!
3. The museum is free. You___________ pay to get in.!
4. Children___________ tell lies. It's very naughty.!
5. John's a millionaire. He___________ go to work.!
6. I ___________do my washing because my mother does it for me.!
7. We___________ rush. We've got plenty of time.!
8. You ___________smoke inside the school.!
9. You can borrow my new dress, but you ___________get it dirty.!
10.We ________________ invite the Nortons to our party. They are nice
people.!
11.Young children ______________  stay at home on their own.!
12.Before you go to the dentist's, you ______________ brush your teeth.!
13.You ________________ shut the windows because it is raining.!
14.You ________________  forget her birthday again.!
15.You _______________  go to the theatre when you are in Vienna. It's great.!
16.My mum thinks I _________________ spend so much money on clothes.!
17."Twilight" is a really great book. You ____________________  read it soon.!
18.The teacher said to me,"You ____________________  get up earlier
because you are late again!"!
19.You ____________________  tell lies!!
20.You ____________________  the car. You are only thirteen!!

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ANSWER KEY:!

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1. mustn't !
2. mustn't!
3. don't have to!
4. shouldn't!
5. doesn't have to!
6. don't have to!
7. don't have to!
8. mustn't!
9. shouldn't!
10. should!
11.shouldn't!
12.should!
13. should!
14. shouldn't!
15. must!
16. shouldn't!
17. should!
18.have to!
19. shouldn't!
20.mustn't!

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