Modals can,must,mustn't,have to,don't have to

I can stay in bed tomorrow morning because I ......... work

• must

• mustn't

• have to

• don't have to

You............touch this knife. It's dangerous.

• must

• mustn't

• has to

• don't have to

We (a)   leave the party now because we have a lot of homework.

Anna did all her homework so she .......... leave the party early.

• mustn't

• has to

• must

• doesn't have to

The windows are very dirty. You (a)   clean them.

The windows aren't dirty. He.............clean them.

• doesn't have to

• don't have to

• mustn't

• must

This is a secret.You (a)   tell anybody.

She ........... buy a newspaper..She can take mine.

• has to

• have to

• doesn't have to

• don't have to

George has travelled a lot.He (a)   speak for language.

I ......... go to bed earlier. (my wish)

• mustn't

• have to

• must

• has to