M.n giúp em với, em đang cần gấp ạ
1. A complaint letter should be ended .................. (polite)
2. It's time- ................ to play games online. (consume)
3. Consumer always want cheap and effective ................. . (produce)
4. Air ................ is often seen as a major anvironmental result of modern living. (pollute)
5. What does the poet want us to learn about ..................... the evironment unpollted ? (keep)
6. ................ trash will pollute the air. (burn)
7. There have been many .............. in the flied of electrical engineering. (innovate)
9. What should we do to keep the environment .................. ? (polltue)
10. Mr.Ha has just fixed the ............... faucet. (drip)
11. The .................. are always right. (consume)
12. This machine is working ............... (effect)
13. What should we do to reduce air ................? (pollute)
14. I am very ............. that I'll go to Hanoi tomorrow. (excite)
15.................. are interested in the protection of the forests. (conserve)
16. The beach needs to be .......... cleaned up. (care)
17. How can we do to keep the environment ..................... ? (pollute)
18. There are more and more ............... problems nowadays. (environment)
19. The government has plans to ................. this city. (modern)
20. We should make the most efforts to stop ................(forest)
