Помогите пожалуйста!

Choose the correct variant (Выберите правильный вариант)

1) You aren’t in a good form. You ….. do sports.

a) should

b) mustn’t

c) shouldn’t

2) Your parents ask you. You ….. help them around the house.

a) don’t have to

b) has to

c) have to

3) Your school marks are not good. You ….. concentrate in your lessons.

a) must to

b) must

c) mustn’t

4) Keep your eyes strong! You ….. watch TV for a long period of time.

a) have to

b) shouldn’t

c) don’t should

5) You ….. drink ice water. You can catch a cold.

a) must to

b) don’t must

c) mustn’t

6) You ….. comply the dress code at school during the holidays.

a) not to have to

b) don’t have

c) don’t have to
только не наугад а чтобы правильно пожалуйста.