=>
V/
1. Don't forget to get a plumber to check the faucet in the kitchen.
2. Solar energy can be used in tropical countries.
3. If we go on wasting water, there will be a shortage of fresh water in a few decades.
4. You should get a plumber to make sure there are no cracks in the pipes.
5. Ms.Ha will have the water pipes checked by a plumber tomorrow.
VI/
1. Mai suggested that those empty bottles should be collected for recycling.
2. I suggest keeping sheets with single printed page for drafting.

3. I suggest our classroom should be decorated again.
4. Ba suggested Nam should repair the electric fan.
5. I suggest organizing a charity even to raise money.
6. He told her to sit down and tell him what worrying her was.
7. I suggest that these plastic bagsshould be taken to the nearest recycling center.
8. If we go on wasting water, there will be a shortage of fresh water in a few decades.
9. I was surprised that Minh is the best student in your class.
10. I suggest that Nam should take a bus to school.
11. If you don't study hard, you will get poor marks.
12. I suggested that these roses should be planted in the garden.
13. I suggest that we should make a good review for the coming test.
14. His exercises were finished by Minh on time.
15. He isn't interested in jogging every morning.
16. Unless you do the test carefully, you will get bad marks.

17. Lan suggests that energy-saving bulbs should be used to save money.
18. If you don't reduce the use of energy, you'll pay more for it.
19. As he couldn't cook a meal, he went to the restaurant.
20. I suggest that we should decorate our house before Tet.