1. What about buying energy - saving bulbs?
=> Shall we buy energy - saving bulbs?
2. Let's protest against the use of nuclear money.
=> Why don't we protest against the use of nuclear money?
3. What about organizing a charity event to raise money.
=> I suggest we should organize a charity event to raise money
4. Why don't we take a short rest?
=> I suggest taking a short rest
5. Let's use electricity economically
=> We suggest using electricity economically
6. Although she was not beautiful, she took part in a beauty contest
=> She was not beautiful but she still took part in a beauty contest
7. Is was raining so we decided to postpone our camping
=> Since Is was raining, we decided to postpone our camping
8. We stayed at home because it rained heavily
=> It rained heavily so We stayed at home
9. SHe couldn't join us because she was busy
=> She was busy so SHe couldn't join us
10. They requested we leave the place at once
=> It was their request that we leave the place at once