6. We will cut down on the use of natural gas because it is …… and harmful to the environment.
A. good | B. limited | C. plenty | D. available |
7. Low energy light bulbs should be used to …… electricity.
A. spend | B. buy | C. waste | D. save |
8. We must …… the amount of water our family uses every day.
A. lower | B. lessen | C. reduce | D. narrow |
9. An air craft without a human pilot aboard is called a …… aircraft.
A. pilotless | B. single pilot | C. double pilot | D. three piloted |
10. The cars which are generated by solar energy are called …… car.
A. solar- wasted | B. solar-powered | C. solar-friendly | D. solar-daily |
11. It is a short walk …… my house …… the cinema.
A. to/from | B. in/from | C. from/in | D. from/to |
12. The village always …… its harvest festival in the spring.
A. holds | B. makes | C. joins | D. takes |
13. Tet is a time for Vietnamese families to clean and …… their houses.
A. hang | B. decorate | C. enjoy | D. prepare |
14. Tom: …… are you going to Phu Yen? -Mary: To attend Hoi Mua festival.
A. How | B. What | C. When | D. Why |
15. ……. is used as non-renewable source of energy.
A. hydro | B. solar | C. coal | D. wind |