单项选择题

A. Going green is helpful for the environment.
B. Going green is helpful for the environment.
C. Office buildings account for a major portion of the planet’s carbon footprint.
D. Consumers don’t care about whether the product is good for the environment.
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单项选择题
A. They are talking about a TV program. B. They are talking about the rules of sports. C. They are talking about swimming in the pool. D. They are talking about having a game of pool.
A. They are talking about a TV program.
B. They are talking about the rules of sports.
C. They are talking about swimming in the pool.
D. They are talking about having a game of pool.
单项选择题
A. The ways to invest.B. The ways to save money.C. The tips to be a successful person.D. Mistakes one should avoid about investment.
A. The ways to invest.
B. The ways to save money.
C. The tips to be a successful person.
D. Mistakes one should avoid about investment.
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