D. Choose the correct modal verb.
1. Children mustn’t/ needn’t dive into the river. It’s dangerous.
2. She shouldn’t / should eat sweets if she wants to lose weight.
3. You must/could be over 18 to drive a car.
4. Helen may/ must go on a tour next summer if her parents give their permission.
5. We could/ couldn’t sleep last night because of the storm.
6. All teens have to /might stay in school until they are sixteen years of age.
7. Must/may I come in?
8. I can’t/can speak Spanish very well because I didn’t learn it at school.
9. If your roommates are too noisy, you ought to/need to study at the student library. It’s quiet there.
10. Girls will cook everything for the party, so boys don’t have to/ mustn’t bring any food.

1. global, bronchial, large-scale, poisonous, technological, powerful, ugly, rural, dangerous, exhaust, high-rise.

2. warming, use, jet-aircraft, complaints, fumes, roads, areas, effect, building, flats, progress.​

global warming - глобальное потепление

bronchial complaints - бронхиальные жалобы

large-scale use - крупномасштабное использование

poisonous effect  - отравляющее воздействие

technological progress - технический прогресс

powerful jet-aircraft - мощный реактивный самолет

ugly roads - ужасные дороги

rural areas - сельские районы

dangerous flats - опасные квартиры

exhaust fumes - выхлопные газы

high-rise building - высотное здание

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Exercise 2

Fred and I didn't play volleyball at the gym.Harry and Dean didn't surf the internetI didn't have a bad dream last nightAmy didn't do any homework last night.My sister didn't have biology at schoolIt didn't snow last nightJoanne didn't send a text to her brotherWe didn't see a film at the cinema.

Exercise 3

I phoned my friend. I didn't phone my friend.I bought a magazine. I didn't buy a magazineI read a newspaper. I didn't read a newspaper.I helped with the homework. I didn't help with the homework.I took a photo. I didn't take a photo.

Exercise 4

where did you have lunch yesterday?what time did you get to school on Mondaywhat did you have for breakfast this morning?who did you sit next to in your last English lesson?how much water did you drink yesterday?did you watch television last night?how did you get to school this morning?

Exercise 6

Did John break his leg? Yes he did.Did Millie find her phone ? No , she didn'tDid Jess and Oliver watch a DVD ? Yes, they did.Did Bett and Jamic help in the kitchen? No, they didn't.Did William buy any new clothes? No,he didn't.