V.use the appropriate expressions above to complete these sentences.
show that by 2050 the world’s population will be 3.5 billion.
2 scientists as the harmonious coexistence between organisms and their environment.
are caused by global warming and the greenhouse effect.
is a renewable energy source that converts the energy of tides into electricity.
5 taking two bottles to for recycling saves enough energy to boil water for five cups of tea.
6 since people need more and more land for are being cleared at an alarming rate.
1. He has just gone.
2. She hasn't read this book yet.
3. Have they bought a new car yet?
4. Did they buy a new car last month?
5. My granny didn't water the flowers in the morning.
6. Have you ever been to Africa?
7. Fred wasn't at home yesterday.
8. Fred has never been to Spain.
9. My house has burned!
10. Alice took my pen when I wasn't in class.
11. Alice took it.
12. Your sister did her homework yesterday.
13. Has your sister done her homework yet?
14. I heard it a minute ago.
15. I have never heard this lovely song!
16. We came home late yesterday.
Объяснение:
The student could not but agree with the teacher.
2. Keep learning English.
3. Her daughters are addicted to singing.
4. It is worth doing this exercise in writing.
5. Stop laughing at him.
6. They love to go to this theater.
7. Do you mind writing her a letter?
8. I don't remember seeing this actor in a play.
9. It is strange that she does not like talking about this topic.
10. She went to her room, asking not to disturb her.
11. May I ask you to repeat what you just said?
12. He had difficulties obtaining a visa.
13. You shouldn't waste money on buying things that she doesn't need.
Объяснение:
что такое герундий я не знаю, но перевёл