1. You will be tired if you don't sleep.
2. It will not be possible if they support us.
3. If you help me, I will give you a lot of money.
4. She will not be slim if she doesn't stop eating so much chocolate.
5. If we sing some carols, they will be happy.
6. Robert will read the whole essay if he likes it.
7. He will not get a better job if he doesn't pass that exam.
8. If you don't exercise and eat healthy, you will put on weight.
9. They will buy some popcorn it they go to the cinema.
10. If he go to the gym, he will get quite muscular.
11. If we don't protect the white dolphins, they will become extinct.
Объяснение:
Тут в каждом предложении будущее время (The Future Tense), по правилу после if мы обязательно должны за месть будущего времени использовать самое обычное(The Present Simple Tense). Вот и всё.
works
3. boils
4. am waiting
5. are eating
6. has
7. aren't listening
8. talk
9. is riding
10. am making
11. speaks
2)
1. are going
2. eats
3. jumps
4. are wearing
5. plays
6. is waiting
7. helps
8. eat
9. is playing
10. washes
11. rings
12. bring
13. is wearing
14. are throwing
15. is walking
3)
1. isn't watching; is sleeping; is
2. Where does your uncle work? – He works at school.
3. Is your friend doing his homework now?
4. When do you usually come home from school? – I come at four o’clock.
5. isn't playing; plays
6. Are you reading a magazine and thinking about your holiday at the moment?
7. I am sitting in the waiting room at the dentist’s now.
8. When do you listen to the news on the radio?
9. Are you playing chess now?
10. My father does not work at the shop.
11. Look at the sky: the clouds are moving slowly, the sun is appearing from behind the clouds, it is getting warmer.