单项选择题

A．They may let out more oxygen which people need.
B．They can absorb different kinds of the harmful indoor chemicals.
C．They can take in all kinds of indoor pollutants.
D．They can make your house prettier and safer.
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单项选择题
A．She has to study for the exam.B．She is particularly interested in plays.C．She’’s eager to watch the new play.D．She can lend her notes to the man.
A．She has to study for the exam.
B．She is particularly interested in plays.
C．She’’s eager to watch the new play.
D．She can lend her notes to the man.
单项选择题
The passage mainly deals with the topic of______.
A．protection of environment
B．relationship between neighbors
C．generation gap
D．cause of jealousy
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