单项选择题

She ought to make a shift now; she is in a bad mood because she ______ in the dull work too long.

A．had engaged
B．is engaging
C．has been engaging
D．engaged
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单项选择题
His request ______ us completely by surprise.
A．shook
B．made
C．took
D．lea
单项选择题
______ with the great hit on the stock market, the sufferings of the investors are worthy.
A．Compare
B．When compared
C．While comparing
D．Comparing
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