单项选择题

It is said that an immediate review of what you have learned will help make your knowledge______.

A．temporary
B．contemporary
C．permanent
D．persistent
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单项选择题
I couldn't sleep last night because the tap in the bathroom was______.
A．draining
B．dropping
C．spilling
D．dripping
单项选择题
In the United States as well as in China, only children tend to be______ by their grandparents.
A．spoiled
B．injured
C．damaged
D．wounded
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