1. We started this experiment last week.
2. They came back home at 7 o'clock in the evening.
3. We decided to send this letter yesterday.
4. To whom did you give these magazines?
5. Yesterday I met Steve in the library.
6. When was the last time you saw him? / When did you last see him? - Last Tuesday.
7. You did not learn French last year.
8. What time did you start working yesterday? - After lunch. We had little work.
9. The weather was good, and my friends and I went to the park.
10. Where were you an hour ago?
11. I met her the day before yesterday, and she told me about it.
1)It is important that we appreciate those who have outstanding traits of character.
2)Everyone should show consideration when they are listening to a lecture.
3)Everyone should be quiet and listen when someone is talking.
4)We must respect old people.
5)We must help each other to live in the society.
6)It is forbidden to kill rare animals because they can become extinct.
7)No one is allowed to pick flowers in other people's gardens because it can disappoint them.
8)We can't fly as we don't have wings.
9)It is prohibited to smoke in planes as it can make harm to other people's health.