Ответ:

Task 1

1) have to

2) don't have to

3) has to

4) doesn't have to

5) have to

6) don't have t

7) have to

8) have to

Task 3

1) have to help

2) Does your brother have to help

3) doesn't

4) do you have to

5) do you have to cook?

6) does she have to work?

7) Do nurses have to go

8) don't

Task 6

1) has to

2) has to

3) has to

4) doesn't have to

5) don't have to

6) have to

7) have to

8) don't have to

Объяснение: