1. If the temperature ____ rising, the polar ice caps will melt. A. kept B. keeps C. has kept D. will keep
6 (trang 57 SBT Tiếng Anh 8 Global Success): Choose the correct answer A, B, C, or D to complete each of the sentences. (Chọn đáp án đúng A, B, C hoặc D để hoàn thành mỗi câu sau.)
1. If the temperature ____ rising, the polar ice caps will melt.
A. kept
B. keeps
C. has kept
D. will keep
2. Because of ____ pollution, the bicycle may someday replace the automobile.
A. water
B. air
C. noise
D. soil
3. Students should learn some practical ways that help to ____ pollution.
A. save
B. cure
C. reduce
D. shorten
4. ____ she left the party, Jenny said goodbye to the host.
A. Before
B. After
C. As soon as
D. Until
5. People think that global warming ____ lots of problems in the future.
A. causes
B. is causing
C. will cause
D. has caused
6. We saw many beautiful birds while we ____ in the lake.
A. fished
B. would fish
C. are fishing
D. were fishing
7. Environmental protection refers to activities that ____ or restore the quality of the environment.
A. maintain
B. participate
C. concentrate
D. involve
8. Public education is probably the most important activity in wildlife ____.
A. conservation
B. prevention
C. treatment
D. stopping
9. The environment won't help us if we ____ it.
A. annoy
B. worry
C. alarm
D. disturb
10. ____ by the 3Rs? - They are Reduce, Reuse, and Recycle.
A. What are they
C. When do you use
B. What do you mean
D. What does it stand