Task 1
1.The keepers feed the lions at 3 pm every day.
=> The lions were fed at 3 pm by the keepers every day.
2.We got lost because we didn't have a map.
=> If we had had a map, we would not have lost.
3.I would prefer you to deliver the sofa on Friday.
=> I would rather you delivered the sofa on Friday.
4.The bridge was so low that the bus couldn't go under it.
=> It was too low for the bus to go under the bridge.
5.That was a silly thing to say.
=> What a silly thing to say!
6. We've run out of tea.
=>There is not any tea left.
7. I last saw him when I was a student.
=> I haven't seen him since I was a student.
8.Susan was too excited to sleep.
=> Susan was so excited that she couldn't sleep.
9.Robert has not had a job for two years.
=> Robert has been out of job for two years.
10.She will complete the work only she is paid extra.
=> She will not complete the work unless she is paid extra.
Task 2
1. All the students love the principal. He is very kind. (because of)
=> Because of the principal's kindness, all the students love he.
2. I have forgotten the tickets. I’m sorry for it. (having)
=> I’m sorry for having forgotten the tickets.
3. I saw it with my own eyes. I believed it. (if)
=> If I hadn’t seen it with my own eyes, I wouldn’t have believed it.
4. The house at the end of the street has been sold. It has been empty for years. (which)
=> The house at the end of the street which has been empty for years has been sold.
5. It's a pity he doesn't take the doctor's advice. (wish)
=> I wish he took the doctor's advice.
#NOCOPY - best answer please ~