单项选择题

The energy gained from the sun can then be used during the hight to enable the necessary chemi-cal reactions to _______ in his body.

A．conduct
B．proceed
C．progress
D．practice
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单项选择题
A Dictionary of the English Language, _______. by Dr. Samuel Johnson, was the first real attempt at a systematic and interestingly written survey of English usage.
A．constructed
B．composed
C．compiled
D．collected
单项选择题
When European originally arrived in _______ E1 Paso, Texa, the area was inhabited by the Manso and Suma peoples.
A．what is now
B．now
C．which now is
D．now is
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