Выберите более подходящий модальный глагол в предложениях 1-10. UCT Library Rules

1. School children may / need not use the library.
2. The Special Department is to / should be used on stated days only.
3. Academic students can / ought to use the library on demonstrating professor's letter.
4. Academic students may / must use library materials only in the building.
5. Academic staff need / should show their academic ID to borrow the books.
6. All user visits are to / have to be registered daily.
7. Animals can't / mustn't be brought to the library (for the exception of guide dogs).
8.A user need / shall not make noise, cause a disturbance, make or take cell phone calls.
9. Lost user card should / doesn't have to be restored.
10. To keep library materials longer than 5 weeks users have to / must pay extra.

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

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

Shall I tur n 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.

Объяснение: привет надеюсь правильно я у себя с тетрадки списала у меня было такое задание