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MODALS: must or mustn't
Autor :
Pilar Otano Cabo
1.
You _________________ at the kerb and look before you cross the street.
A.
must stop
B.
mustn't stop
2.
Children _________________ listen to the teacher if they want to learn.
3.
You _________________ everything people tell you.
A.
must believe
B.
mustn't believe
4.
If you want to be healthy, you _________________ eat a lot of vegetables.
5.
You _________________ go out on your own at night.
6.
You _________________ read the question carefully before you write the answer.
7.
We _________________ steal because it is wrong.