A. Because it is fun. B. Because they are forced to cle-找考题网

单项选择题

A. Because it is fun.
B. Because they are forced to clean themselves.
C. Because they’re proud of their pretty feathers.
D. Because they have an instinct for cleanliness.

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单项选择题

A. The woman walks too quickly. B. The woman is a fast talker.C. The woman couldn’t walk. D. The woman walks slowly.

A. The woman walks too quickly.
B. The woman is a fast talker.
C. The woman couldn’t walk.
D. The woman walks slowly.

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A. A train arriving in Boston.B. A timetable.C. A map of New York.D. Pictures of the trains from Boston to New York.

A. A train arriving in Boston.
B. A timetable.
C. A map of New York.
D. Pictures of the trains from Boston to New York.

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