单项选择题

His ______ behavior made everyone nervous. He was always rushing to open doors and perform other small tasks, apologizing unnecessarily for any inconvenience that he might have caused.

A．oblivious
B．observant
C．obsequious
D．obsolescent
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单项选择题
The patient says he dreads ______ neighbors to carry him and his wheelchair up the stairs to his tenth-floor apartment when the elevator goes out.
A．asking
B．to ask
C．being asked
D．to be asked
单项选择题
Now a single cell phone is able to store a large______of information about an individual life.
A. deal

B. number
C. amount

D. account
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