单项选择题

In order not to be disturbed, I spent three hours ______ in my study.

A．locking
B．locked
C．to lock
D．being locked
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单项选择题
I can ______ you to the market in my car.
A．send
B．pick
C．ride
D．take
单项选择题
Please take your ______ things—money, jewelry, cameras and so on with you when you go out of the hotel.
A．expensive
B．worthy
C．precious
D．valuable
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