III. Find mistakes in each sentence.

1. Under the new regulations, workers have wear protective clothes.

2. When you come to Brazil, you should to tip the waiter 10% of the bill.

3. When eating in India, you shouldn’t always use the right hand. Never use the left hand.

4. In Australia, you mustn’t to comment on a person’s accent.

5. In my family, children has to get permission before leaving the dining table.

6. When we were young, we have to stand in a row to greet guests.

giúp mik vs mik cảm ơn

1. You miss any of the meetings. They’re always very useful.

A. needn’t         B. should         C. shouldn’t     D. can

2. She is famous her intelligence. She designs many special styles for Ao dai.

A. in             B. for         C. with         D. into

3. I think someone talk to the boss. We can’t work extra hours on Saturday.

A. have to         B. should         C. don’t have to    D. shouldn’t

4. We reached the house after for almost an hour.

A. cycled         B. to cycle         C. cycling         D. cycle

5. At school, the teachers and students follow the rules.

A. has to         B. have to         C. need to         D. haven’t to

6. He try to be a bit more punctual. It’s rude to be late here.

A. shouldn’t     B. should         C. couldn’t     D. was able to

7. Would you like to go a walk the park this afternoon?

A. to - at         B. for – at         C. to - in         D. for - in

8. The buses were very this morning. We can’t go to the church with you in time.

A. crowd         B. crowded     C. full         D. busy

9. We wear uniform at school from Monday to Saturday. That’s a good way and

equal to everyone.

A. have to         B. haven’t to     C. could         D. must

10. Anna change her hair style because the old one doesn’t suit her any more.

A. could         B. has to         C. have to         D. doesn’t have to 

giúp mk vs ạ mk cảm ơn