1. Underline the correct item. 28 We mustn't/don't have to go swimming at this beach; sea turtles lay their eggs here. 29 You can't/had better not buy this tinned food; it's genetically modified. 30 He wastes so much energy; he ought/has to at least switch off the lights when he leaves the room. 31 You can't/don't have to enter this room; it's for staff ontv. 32 I must/can't do something to help thi environment but I don't know what. 33 You can't/shouldn't buy any products you don't really need. 34 You ought/have to reuse plastic and pape bags; don't throw them away. 35 When you travel, you must/should try to sta at environmentally friendly hotels.

Ответ:

1. We mustn't go swimming at this beach; sea turtles lay their eggs here.
2. You had better not buy this tinned food; it's genetically modified.
3. He ought to at least switch off the lights when he leaves the room.
4. You don't have to enter this room; it's for staff only.
5. I must do something to help this environment but I don't know what.
6. You shouldn't buy any products you don't really need.
7. You ought to reuse plastic and paper bags; don't throw them away.
8. When you travel, you should try to stay at environmentally friendly hotels.

Проверка за 10 секунд: Внимательно прочитай каждое предложение и убедись, что выбранный модальный глагол или конструкция наилучшим образом передает смысл высказывания.

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