单项选择题

We don’t understand the passage（）there are few new words in it.

A．because
B．though
C．since

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单项选择题

People read it for information.（）

A．year
B．winter
C．summer
D．passport
E．umbrella
F．medicine
G．newspaper

单项选择题

A．when
B．where
C．what

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