单项选择题

We all questioned _____accurate the result was.

A．however
B．why
C．how
D．what
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单项选择题
We interviewed ten _____but did not find anyone suitable.
A．companions
B．opponents
C．candidates
D．partners
单项选择题
This instrument, _____and operating next year, will consist of threetelescopes.
A．completed
B．completing
C．to complete
D．to be completed
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