Viết lại câu sao cho nghĩa không đổi

I. Viết lại câu sao cho nghĩa không đổi (tính từ+that, tính từ+toV)
1. Exploring the world of Personal Computer is fascinating.
2. They burned the plastic bottles and old plastic bags. It isn’t good.
3. Keeping the environment clean is extremely important.
4. Understanding the handbook isn’t difficult.
5. Buy a Complex. It isn’t expensive.
6. I am afraid. My friend won’t visit this city this weekend because of the bad weather.
7. The workers haven’t finished their work before dark. They are disappointed.
8. The boys are very excited. They are playing the coming game.
9. Nam is going to pass the exam easily. His parents are sure about that.
10. Their parents take good care of them. The children are lucky.
11. She can go to the dancing club on the weekend. She is happy.
12. She is anxious. She can’t come to class on time.
13. Hung did a brave action. He was proud of this.
14. She is quite disappointed. She hasn’t finished the work on time.