3. вставьте подходящий модальный глагол (mustn’t / needn’t)

shall i turn on the light? — no, you it is still light in the room.
make your bed. i'll do it for you.
you mineral water, we have plenty.
stay up late.
take an umbrella today. the sun is shining.
it’s prohibited to go into that building. go in.
the meeting is very important. be late.
forget my keys or i won’t get in.
bring sandwiches. we can stop at a cafe.
smoke.
in this school pupils school uniform. they can wear jeans and t-shirts.

4. вставьте подходящий модальный глагол (must / can / need)

sonia practise so much if she wants to take part in the marathon.
if you want to improve your english, you very hard.
you come to help them tomorrow: the work is done.
you change the whole text as the beginning is all right.
john tell us the rules of the game: we know them.
we afford to pay the bill.
it is already six o’clock. we if we don’t want to be late.
she a room nicely.
you care of your parents.
we with my brother when we are in paris.

Упражнение 3. Вставьте подходящий модальный глагол (mustn’t / needn’t)  

(mustn’t - "не должен", needn’t - "не нужно")

Shall I turn on the light? — No, you needn’t. It is still light in the room.

You needn’t make your bed. I'll do it for you.

You needn’t buy mineral water, we have plenty.

We mustn’t stay up late.

You needn’t take an umbrella today. The sun is shining.

It’s prohibited to go into that building. You mustn’t go in.

The meeting is very important. We mustn’t be late.

I mustn’t forget my keys or I won’t get in.

You needn’t bring sandwiches. We can stop at a cafe.

Pupils mustn’t smoke.

In this school pupils needn’t wear school uniform. They can wear jeans and T-shirts.

Упражнение 4. Вставьте подходящий модальный глагол (must / can / need)

Sonia must practice so much if she wants to take part in the marathon.

If you want to improve your English, you must work very hard.

You need not come to help them tomorrow: the work is done.

You need not change the whole text as the beginning is all right.

John need not tell us the rules of the game: we know them.

We can not afford to pay the bill.

It is already six o’clock. We must hurry if we don’t want to be late.

She can decorate a room nicely.

You must take care of your parents.

We can stay with my brother when we are in Paris.