单项选择题

A．It affects the growth of trees.
B．It has been increasing since the Ice Age.
C．It is determined by the chemicals in the air.
D．It follows a certain cycle.
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单项选择题
A．She’s going to New York.B．She’s going to Chicago.C．She’s going to Washington.D．She’s going to San Francisco.
A．She’s going to New York.
B．She’s going to Chicago.
C．She’s going to Washington.
D．She’s going to San Francisco.
单项选择题
A．Its results were just as expected.B．It wasn’t very well designed.C．It fully reflected the students’ ability.D．Its results fell short of her expectations.
A．Its results were just as expected.
B．It wasn’t very well designed.
C．It fully reflected the students’ ability.
D．Its results fell short of her expectations.
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