Modal verbs

We .............wear uniform on Saturday. We can wear casual clothes.

• mustn't

• shouldn't

• don't have to

You .................take an umbrella. I'am sure it isn't going to rain.

• don't have to

• mustn't

• should

You look really tired. You .............have a rest.

• should

• must

• have to

My train is at 9 o'clock. I'm sorry I ............ leave now.

• have to

• should

• need

Your hair is too long. I think you .................. have it cut.

• must

• should

• have to

Bob can't come here tomorrow because he ..............work

• has to

• had to

• have to

You ............hand in your assignment next Monday or you will be marked zero

• must

• should

• can

We .............eat squid, duck or shrimp during Tet because they are seen as bad symbols.

• don't have to

• mustn't

• shouldn't

In many countries, we .............fasten the seatbelt in the car because it's the law

• have to

• must

• should

Because we have to be there by 8.30, we ............take a tixi

• must

• shouldn't

• has to