单项选择题

I am not sure whether we can give the right advice _____emergency.

A．on account of
B．in case of
C．at the risk of
D．in spite of
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单项选择题
Would you mind keeping a（n） _____ on the house for us while we are away？
A．eye
B．look
C．hand
D．view
单项选择题
Her heart _____faster when she entered the exam hall.
A．jumped
B．sank
C．beat
D．hit
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