VI. Read the passage carefully, then choose the correct answers.
Do you run the faucet while you brush your teeth? Do you know that you are waating the water? Whenever you turn on the faucet, think about how you'd feel if you had to carry that water from a well! Then you'll remember not to run extra water while brushing teeth. Is there littor around your school or at the park? Litter doesn't look nice but some litter can be harmful to other creatures Always put litter in trash cans and be sure lo recycle all the aluminum and steel cans. Look for the triangle at the bottom of plastic containers. If you see the numbers 1 or 2 in the triangle, the plastic item can be recycled
Even something as simple as using bothi side of a piece of paper can help the earth.When you are finished with a school worksheet, use the back of the paper for drawing or feed it back into printer to use for another worksheet. You can save electricity by turning off the computer or other electronics when they are not being used and don't forget to turn off the lights when you leave a room
32. What can people do to help the earth?
a. Save water b. Reuse waste paper c. Recycle things d. All of the above
33. Which of the following cannot be recycled (or reused)?
a. Plastic b. Water c. Paper d. Metal
34. What symbol can you see at the bottom of the container that can be recycled?
a. Circle b. Oval c.Triangle d. Diamond
35. What can you do to save electricity?
a. Turn off the television when you are not watching it
b. Turn off the faucet when you finish using.
c. Use a worksheet with single printed page for another worksheet.
d. Look for recycle information at the bottom of plastic containers.
36. Which of the following is not the writer's advice?
a. Reuse and recycle paper, bottles and cans.
b. Put litter in trash cans.
c. Save water and electricity.
d. Reduce the amount of garbage we produce

OV. Fill in each numbered blank with a word from the box
dams, against, prevent, humanmade, pleces ,wides,pread, looding, combine,
Floods cause.(24)_________damage. Unfortuniately, there is little we can do to (25)_______ flooding in some situations. There are several causes for (26)__________ including deep snow melt, icy rivers, and broken (27)______. First, when with the deep snow melts it creates, large amounts of water. When heavy rain and sudden warm temperatures (28)with deep snow , floods can occur. Second, (29) ________form dams which break and cause flooding. Third, (30) _______dams can break and cause devastating damage. The water from these dams can be as powerful as a tidal wave. Our best plan of attack (31)_________ flooding is to recognize the potential for flooding in certain conditions

IV. Choose the underlined word or phrase that needs correcting.
20. He was yery busy, but he tried hardly to come home for Christmas.
21. My youngest sister is very intelligent but beautiful
22. A large number of people were killed when the building wras collapsed.
23. The woman I met her yesterday is very friendly

IlI. Give correct form or tense of the verb.
15. The preparations for Tet (already/ make)__________
16. The last time I (see) __________her, she was thinking of moving to France.
17. Nancy suggested (go)_________ to the lake this weekend.
18. I cannot allow you (go)_______ out driving in this weather.
19. Nancy (study)___________for the second-semester exams at present.

Give correct form of the word.
11. Fruit and vegetable are_________ food. (health)
12. She__________displayed her prize to her parents. (pride)
13. A student must work__________to have good results. (efficiency)
14. Do believe in the _____________of UFOs? (exist)

L Choose the best answer to complete the sentence.
1. Lighting accounts __________10 % to 15 % of the electricity bill .
d. for a. on b. to c. at
2. Tet is a festival which occurs_________late January or early February.
d. from a. on b. in c. at
3. Whenever I meet new words, I always look them________ in a dictionary
d. after c. up a. for b. over
4. They live in the house__________roof is full of holes.
d. whose b. of which a. which c. that
5. This is the woman______in Peru last year.
a. who I met her b. who met d. I met her c. I met
6. He promises never __________ again
a. to smoke b. smoking c. smoke d. smoked
7. _______he didn't feel well, the boy wanted to stay home from school.
d. Unless a. Even though b. Because c. when
8. It's advisable to________things in order to save natural resources
b. replace a. recycle c. reduce d. consume
9. The_________of hiding eggs on Easter is practiced in many American homes.
a. costume b. experience c. celebration d. custom
10. "I'm sorry about the noise."______"
a. That's right b. Of course c. It's OK d. you’re welcome

V. Choose the one option that best completes the passage.
The sun has given us solar energy since the earth (24) _________but it wasn't. until recently that (25)______ understood how convert. the sun's energy to elec- tricity. Photovoltaic cells, abbreviated PV, convert sunlight (26)________ to elec- tricity. These cells can be so small (27) ___they power a wristwatch or calculator. Large PV system can generate enough electricity for a building and are (28) ________for power in remote areas that get enough (29)________.Solar power plants can generate enough electricity to power homes and businesses but this is new (30)_______and as of 2006, there were only fifteen (31) plants, in the U.S.
24. a. formed b. has formed c. was formed d. has been formed
25. a. invent b. invention c. inventive d. inventors
26. a. mainly b. directly c. exactly d. largely
27. a. as b. than c. that d. then
28. a. use b. to use c. using d. used
29. a. sunshine b. sunrise c. sunshade d. sunset
30. a. technical b. technology c. technician d. echnological
31. a. such c. even d. every b.so