Modals Verbs

Use both _____ and _____ to say that it is important or urgent to do something.

• have to
• can

• may

• must

You (a)   help me now

I (a)   study this weekend.

Our dog ​_____ ​ have a vaccination.

• has to
• have to
• must

She ____ wear a uniform.

• mustn't

• has to

• have to

• must

You (a)   work hard.

They (a)   leave early today.

You ____ ​ see the doctor.

• have to
• has to
• must

They ____ stop playing computer games.

• have to

• mustn't

• must

• don't have to

I ____​ arrive at work at 9 sharp.

• have to
• must
• don't have
• mustn't