1. It may be concluded that at least sixteen schools have adopted these plans.
2. It is very cold in the hills of northern Thailand
3. Take it easy and everything will be all right.
4. It's hot today. What's the temperature?
5. It was said that he was jealous of her.
6.It was annoying not being able to remember his address.
7. It is not necessary to be rich to be happy.
8. It was suspected that our computer program had a virus.
9. I think it's a good idea to go swimming.
10. looks gloomy when all the trees are leafless.