单项选择题

A conscientious teacher spends hours preparing for classes and correcting students' paper.

A．creative
B．leading
C．skillful
D．careful
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单项选择题
He was exhilarated by the thought of his ______ trip.
A．forthcoming
B．imminent
C．immediate
D．uprising
单项选择题
You may leave the jelly in a cool place to ______ it.
A．harden
B．soften
C．sharpen
D．strengthen
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