7. She does not often drink milk, does she?
8. My father is reading a newspaper now, isn't he?
9. They were swimming at this time last Sunday, weren't they?
10. Our friends didn’t arrive at the station on time yesterday, did they?
11. I have got an amazing CD, haven't I?
12. Kate won’t meet you tomorrow, will she?
The didn't flow to Athens last week. Did they flow to Athens last week?
Our teacher did not tell us about animals at the last lesson. Did our teacher tell us about animals at the last lesson?
The children were not at zoo last Sunday. Were the children at zoo last Sunday?
I didn't meet him many years ago. Did I meet him many years ago?
You didn't speak to her yesterday. Did you speak to her yesterday?
We were not very tired yesterday. Were we very tired yesterday?
Henry didn't buy this bike a year ago. Did Henry buy this bike a year ago?
Our lesson didn't begin fifteen minutes ago. Did our lesson begin fifteen minutes ago?
Helen didn't forget about the meeting. Did Helen forget about the meeting?
We didn't see the UFO in the sky. Did we see the UFO in the sky?
Объяснение:
1. I think that the air pollution is the most serious ecological problem.
2. My country suffers from the contamination after the explosion at the Chernobyl’ nuclear power plant. The land is heavily polluted.
3. Young people can plant trees as many as possible separate waste.
4. I would prohibit cars in cities, because automobile exhaust is now the source of the air pollution.
5. Ecological problems should be discussed at school because pupils should understand the environment situation and they can positively influence on it, for ex., they can participate in some voluntary environment projects.
7. She does not often drink milk, does she?
8. My father is reading a newspaper now, isn't he?
9. They were swimming at this time last Sunday, weren't they?
10. Our friends didn’t arrive at the station on time yesterday, did they?
11. I have got an amazing CD, haven't I?
12. Kate won’t meet you tomorrow, will she?