单项选择题

It is important that hotel receptionist that guests are registered correctly.

A．has made sure
B．make sure
C．makes sure
D．made sure
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单项选择题
His silly questions always ______ me very much.
A．worry
B．annoy
C．disturb
D．bother
单项选择题
We were able to ______ different places in the city from the airplane.
A．look down upon
B．pick up
C．pick out
D．look for
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