You ................... chew gum in class.

• mustn't/ must not

• don't have to

• shouldn't

I have to ............... "ao dai" on Monday at school.

• wears

• wear

• wearing

Students ....... wear uniform at school.

• A. mustn't

• B. must

• C. are

• D. must be

Students_________ talk during the exam.

• must

• mustn't

• have to

• don't have to

I _________ wake up early tomorrow. I want to watch the sunrise.

• must

• mustn't

• have to

• don't have to

You ................... chew gum in class.

• mustn't/ must not

• don't have to

• shouldn't

Daniel _____ go to the bank. He hasn't any money.

You ........... lock the door when you go out. There have been a lot of breaks in recently

• must

• mustn't

• have to

• didn't have to

Julia wears glasses. She .......... wear glasses since she very young.

• has had to

• have to

• must

• had to

You .......... wear your best clothes. You'll get them dirty

• mustn't

• don't have to

• must

• have to