Помогите ,пожалуйста

Task 1

A5, B1, C3, D2

Task2

1. must

2. ought to/should

3. dont need to

4. could

5. am able

6. are able to

7. could

Task 3.

1. should

2.ought to

3. was able to

4. need not

5. was able to

6. must

7. need not

8. must not

Task 4.

1. have you?

2. arent there?

3. shall we?

4. will you?/wont you? вероятны оба варианта

5. is there?

6. will you?/wont you? возможны оба варианта

7. can it?

8. arent I?