单项选择题

The current rate of annual increase in the world population is about_________.

A．9 million.
B．5.7 million.
C．90 million.
D．20 million.
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单项选择题
What is the attitude of some people toward Gypsies
A．Putting up with them.
B．Being envious of them.
C．Being unfriendly to them.
D．Admiring their musical talent.
单项选择题
Jane was nervous________.
A．because she was worried about the birthday party
B．because she found this history course very challenging
C．because she thought her term paper might be late
D．because she had a very hard time sleeping
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