First designated in 1970, Earth Day has become an annual international-考呗网题库移动版

单选题First designated in 1970, Earth Day has become an annual international event __________concerns about environmental issues such as pollution.

A．dedicated to raising
B．dedicated raising
C．dedicates to raise
D．that dedicates to raising

参考答案A

解析:

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A．when
B．since
C．before
D．after

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单选题 It was not until midnight the snowcapped peak.

A．that they sighted
B．that they did not sight
C．did they sight
D．had they sighted

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单选题 __________ can help but admit that drastic changes have taken place in China since the economic reform 20years ago.

A．Everybody
B．Someone
C．Anybody
D．Nobody

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