Task 3. Fill in the correct modal verb. Remember, you'll need only ten of these verbs. Different variants are possible.
must
mustn't
have to/has to
don't have to/doesn't have to
can
could
can't
couldn't
shall
should
shouldn't
may
will
may not
would
needs
need
needn't
1.
2. You
3. I'm not well.
5.
we go on holiday this year?
wash up. Mum has already done it.
you call a doctor
jump, but 1
swim when I was four years old.
to get up early tomorrow. Her plane takes off at 6 am.
eat less fat-free products.
look both sides before crossing the road.
eat chicken with mushy peas if you don't want to.
buy any more bread. We've got enough at home.
be talkative during the classes!
6. He is so fat! He
7. Everybody
8. You
9. He
10. Pupils
WA
(10)​

1. must
2. mustn't
3. have to
4. don't have to/doesn't have to
5. Can
6. could
7. Can't
8. couldn't
9. shall
10. should

1. You must go to the dentist twice a year for check-ups.
Explanation: This is an obligation or requirement. Going to the dentist is necessary for maintaining oral health.

2. You mustn't eat too much sugar.
Explanation: This is a prohibition. Eating too much sugar can lead to health problems.

3. I'm not well. I have to go to the doctor.
Explanation: This is an obligation. When someone is not feeling well, they need to see a doctor for proper treatment.

4. Do we have to go on holiday this year?
Explanation: This is a question about obligation. The speaker wants to know if it is necessary or required to go on vacation this year.

5. We don't have to wash up. Mum has already done it.
Explanation: This is a statement about absence of obligation. There is no need to wash the dishes because someone else has already done it.

6. Do you think I should call a doctor?
Explanation: This is a question asking for advice or recommendation. The speaker is not sure if it is necessary to call a doctor.

7. I could jump, but I'm scared.
Explanation: This is a possibility or ability. The speaker is capable of jumping, but doesn't want to due to fear.

8. I could swim when I was four years old.
Explanation: This is a past ability. The speaker is recalling a time when they were able to swim at the age of four.

9. She will need to get up early tomorrow. Her plane takes off at 6 am.
Explanation: This is a future obligation. Due to her flight, she will have to wake up early.

10. You should eat less fat-free products.
Explanation: This is a recommendation or suggestion. The speaker advises to reduce the consumption of fat-free products.

11. You should look both sides before crossing the road.
Explanation: This is a piece of advice or recommendation for safety. It is important to check both directions before crossing the road.

12. You don't have to eat chicken with mushy peas if you don't want to.
Explanation: This is a statement about absence of obligation or requirement. It is optional to eat chicken with mushy peas.

13. We don't need to buy any more bread. We've got enough at home.
Explanation: This is a statement about absence of necessity. There is already a sufficient amount of bread at home, so there is no need to buy more.

14. Don't be talkative during the classes!
Explanation: This is a command or order. The speaker is telling someone not to talk excessively during the classes.

15. He is so fat! He needs to lose weight.
Explanation: This is a statement about necessity. The speaker believes that the person mentioned should lose weight for health reasons.

16. Everybody should respect each other.
Explanation: This is a statement of general obligation or requirement. It is expected that everyone should show respect towards each other.

17. You can play outside.
Explanation: This is a statement about possibility or permission. The speaker allows the person to play outside.

18. You needn't worry about the test. I'm sure you will do well.
Explanation: This is a statement about absence of necessity. There is no need to worry because the speaker is confident in the person's ability to perform well on the test.

19. He may not come to the party tonight.
Explanation: This is a statement about possibility or permission. There is a chance that he will not attend the party.

20. Pupils would benefit from reading more books.
Explanation: This is a statement about an imagined or hypothetical situation. The speaker believes that reading more books would be advantageous for the students.