11. thêm by him nữa ó

up - in - in

2. Natural gas is cheap, but it is excellent for cooking.

3. The power plant is big and it provides enough power for the whole town.

4. The solar panels are expensive to buy, but they save money in electricity bills later.

5. My father loves a coal fire but I hate it.

6. I don't think we should use nuclear power, but my brother thinks using it is a good idea.

took

will help

will be

comes

will call

use

hăm nhanh bằng chj đc đu :<