单项选择题

A．He is afraid he won’t be chosen.
B．The boss hasn’t decided where to go.
C．Such a trip is necessary for the company.
D．It’s not sure whether there is a trip.
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单项选择题
Some people have boxes or baskets for letters ______.
A．on the doorway
B．beside the front door
C．on the roadside
D．near the house
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