must mustn't needn't

We use ..... to say that something is necessary or very important to do

• must

• needn't

• don't have to

• mustn't

We use ..... to ay that something is prohibited (a negative order)

• needn't

• must

• mustn't

• don't have to

You .......... wear a helmet. It's obligatory.

• have to

• must

• mustn't

• don't have to

I ..... do more exercises. I'm too fat!

• have to

• must

• mustn't

• needn't

We ......... send text messages during lesson.

• must

• mustn't

• need

• needn't

You ..... go there. Tom will do this for you.

• mustn't

• must

• have to

• needn't

Kitty and Jane ...... pass the exam. Otherwise, they will be banished from school.

• must

• have to

• needn't

• don't have to

You ..... help me. I can do this on my own.

• needn't

• must

• mustn't

• need