Ngũ vị hương

The bus goes at 10.15. She ………………….. leave at 10 if she wants to catch it

• mustn't

• has to

• have to

• must

1. The British Library: Coats and bags ………………….. be left at the coakroom or in a locker.

• does

• will

• have to

• must

1. Jim can’t see very well. He ………………….. wear glasses.

• is

• must

• have to

• has to

1. You ………………….. see the film. It’s fantastic.

• has to

• must

• have to

• are

1. Oh, no. It’s Monday tomorrow. I ………………….. go to school again.

• must

• have to

• has to

Đai ....... smoke at university

• doesn't have to

• 
• doesn't has to

• don't have to

1. English children ………………….. stay at school till they are 16.

• have to

• must

• are

• has to

1. OK. You can go to the party, but you ………………….. be back before midnight.

• does to

• have to

• has to

• must

1. A flight attendant: “All mobile phones ………………….. be switched off during the takeoff.”

• has to

• must

• doesn't to

• have to

1. The metro station is closed. I ………………….. get a taxi.

• am

• musn't

• have to

• doesn't