A. husbands
B. concerns
C. supports
D. surrounds
A. dear
B. wear
C. share
D. compare
A. police
B. office
C. advise
D. suppose
A. authentic
B. decision
C. official
D. referee
A. would have invited
B. have invited
C. will invite
D. would invite
A. graduated
B. has graduated
C. had graduated
D. will have graduated
A. haven’t you
B. didn’t you
C. wasn’t you
D. aren’t you
A. although
B. because of
C. because
D. in spite of
A. off
B. on
C. out
D. away
A. to have left
B. having been left
C. to leave
D. leaving
A. is a novel publised
B. a novel published
C. a novel was published
D. was a novel published
A. a
B. an
C. the
D. x
A. compatible
B. liable
C. available
D. accessible
A. since he has gone downstairs
B. as he went downstairs
C. because he was going downstairs
D. when he was going downstairs
A. maintain
B. develop
C. gain
D. collect
A. signal
B. response
C. answer
D. reply
A. make up
B. make out
C. turn up
D. turn out
A. money
B. love
C. felling
D. heart
A. minor
B. main
C. nonessential
D. unimportant
A. discourage
B. encourage
C. decrease
D. increase
A. wealthy
B. fine
C. kind
D. poor
A. busy with
B. relaxed about
C. free from
D. interested in
A. Thank you so much.
B. You are welcome!
C. Then, I’d call it a day.
D. Incredible! I haven’t even started.
A. Will you buy tea or coffee on the way home?
B. Do you want something to eat right now?
C. Would you like something to drink?
D. Are you tired after a long journey?
A. Human using sunlight to stay warm
B. The need to develop new technology for solar power system
C. How the energy of sunlight is used
D. Solar energy can provide power for transportation systems
A. The writer provides a list of solar energy projects.
B. The writer lists in chronological order the invention of various systems that gather the energy of sunlight.
C. The writer describes in detail how a PV system works.
D. The writer briefly contrasts the differences in using solar energy and other types of fuel.
A. contaminates
B. appreciates
C. commemorates
D. evaluates
A. dangerous radioactive waste
B. high price
C. lots of smoke
D. long time to build
A. water
B. steam
C. sunlight
D. solar power
A. Sources of environmental damage
B. The pollution from the city
C. Bad effects of industrial waste
D. The quality of the environment
A. A danger to the environment
B. The only source of pollution
C. The utmost harmful activity
D. A threat to human health
A. the remaining waste
B. a danger
C. the environment
D. the threat of the remaining waste
A. Surface water contamination affects an ecosystem as the whole.
B. Soil contamination is not related to ecosystem.
C. Groundwater contamination can never happens.
D. Air contamination is the most serious in wetlands.
A. Lower food chain organisms
B. Animals
C. Water-based organisms
D. Wetlands
A. frightful
B. illogical
C. inventive
D. artificial
A. consumed
B. taken in
C. swallowed
D. piled up
A. have bought
B. the dealer
C. should return
D. make
A. beautiful
B. intelligence
C. that
D. appreciate
A. Experiments
B. doing
C. as instinctive as
D. feeding
A. Mr. Ba is the most intelligent man I have ever met.
B. The more I meet Mr. Ba, the more intelligent he seems to be.
C. Mr. Ba is the most intelligent man in the world.
D. Nobody in the world is as intelligent as Mr. Ba.
A. David said that I would buy that computer at the shop near his house.
B. David said that he had bought that computer at the shop near his house.
C. David said that he bought this computer at the shop near my house.
D. David said that I had bought that computer at the shop near my house.
A. The thief should be arrested today.
B. The thief can’t be arrested today.
C. The thief may be arrested today.
D. The thief mustn’t be arrested today.
A. You can eat that cake provided you don’t share any with him.
B. You can eat that cake in case you don’t share any with him.
C. You can’t eat that cake unless you share some with him.
D. You can’t eat that cake if you share some with him.
A. They left the concert hall just as the fire alarm went off.
B. The fire alarm had gone off before they left the concert hall.
C. They were leaving the concert hall when the fire alarm went off.
D. No sooner had they left the concert hall than the fire alarm went off.
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