1. I like playing soccer, so I spend a lot of time on that game
2. They had to cancel their picnic because of the cold weather
3. They studied hard, so they passed the examination
4. If they had been here, they could have helped you
5. I can’t go out because of the rain
6. This book is so interesting that I have read it many times
7. This car isn’t new enough for me to buy
S tobe(not) adj enough for sb to Vnt
8. He isn’t old enough to go to school alone
9. You must be careful as he is very strict
10. It was such a long test that I couldn’t finish it in an hour 

1. I spend a lot of time playing soccer because I like that game.

2. they had to cancel their picnic because of the cold weather.

3.they passed the examination because they studied very hard

4. they were not here and that's why They couln't help you

5. I can't go out because of the rain

6.This book is so interesting that i read it many times.

7. This car is not new enough for me to buy.
8. He is not old enough to go to school alone.

9. You must becareful because of his strictness.

10.The test was too long for me to finish in an hour.