单项选择题
____ the temperature going down so quickly, I don't think we are able to go on with our experiment.
A．For
B．By
C．From
D．With
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单项选择题
60% of those ____ in the research thought the noise levels of the traffic had increased.
A．questioning
B．questioned
C．question
D．to question
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单项选择题
____, but would you mind moving your bag
A．Wait a minute
B．Thank you very much
C．Excuse me
D．Nice to meet you
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