Chọn đáp án thích hợp

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III. Lexical
1. Tourists won't come here.....the beach is made cleaner.
A. if
B. or
C. when
2. We should book a hotel room in advance.....the hotel is fully booked.
A. provided
B. in case
C. unless
3. The air quality will become worse.....there is a volcano eruption.
A. unless
B. as long as
C. in case
4. The water source may be highly contaminated.....the factory stops dumping its waste.
A. if
B. providing
C. unless
5. He won't make any progress if he.....his wrong approach.
A. changes
B. will change
C. doesn't change
6. If my house were not guarded by two Alastian dogs, it.....into every night.
A. would break
B. would be broken
C. were broken
7. If the drought continued,
A. will be
C. were
C. is
9. Robin.....a healthier life if he gives up alcohol.
A. would lead
B. led
C. will lead
10. Visual pollution may have a greater.....on people than we think.
A. effect
B. destruction
C. damage
there.....a heavy loss of crops.
B. would be
8. David could even play in NBA if he.....taller.
A. were
B. will be
11. Hunting for meat and burning forests for soils have.....wildlife.
A. protected
B. conserved
C. survived
12. You must keep the.....to avoid visual pollution, which can make you depressed.
A. room tidily
B. tidy room
C. room tidy
13. Americans throw away twenty-eight and a half million
A. landfills
14. We will.....it in the future
A. suffer
B. landscapes
if we do nothing to presreve
B. promise
D. unless
D. if
D. when
tons of plastic in.....every year.
C. landmarks
D. because
D. won't change
D. broke
D. is
D. would be
D. leads
D. prevention
D. destroyed
D. tidily room
D. landslides
our natural resources right now.
C. regret
D. reject