I.  4. A: What do people use solar power for ?

5. A: When was Yaly Hydropower Plant constructed ?

6. A: Where will be solar panels planced ?

7. A: How much the US spent on energy research in 2015 ? ( ko biết đúng ko nữa)

8. A: How many types of renewable energy ?

II. 1.T

2.T 

3. F

4. F

5. F

6. T

III.  1. Use

2. Are you doing

3.is increasing

4.installed

5.will happen

6.is built

7. Is made

8. Emit

9.to invest

10. Using

( mình ko chắc bài này đúng  100% đâu đấy )