must & have to & need to

I _____ lose the weight. I'm too fat.

• must

• mustn't

2. I ______ be late for the school.

• must

• mustn't

The kids ______ sleep regularly to grow healthily.

• must

• mustn't

I ______ finish my homework.

• must

• mustn't

We _____ obey the rules to live in peace.

• must

• mustn't

We ____ be quiet in the classroom.

• must

• mustn't

We _____ shout in the classroom.

• must

• mustn't

We _____ be careful while we are walking on the street.

• must

• mustn't

I _____ finish my project on Monday. The deadline is Monday.

• have to

• have

• don't have to

• doesn't have to

My father warned me about the party. I _____ be at home before midnight.

• have to

• don't have to

• must

• mustn't