单项选择题

You’d better have the pipe checked today. It has kept _____ for three days.

A．pouring
B．leaking
C．spitting
D．dropping
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单项选择题
The woman’s illness _____ the doctors; they couldn’t find the cause.
A．attracted
B．excited
C．puzzled
D．interrupted
单项选择题
If you’re looking for a job you need to be _____ about where you’re prepared to work.
A．changeable
B．available
C．flexible
D．mobile
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