单项选择题

Grandmother is ill. We must ______ a doctor.

A．send away
B．send off
C．send for
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单项选择题
They ______ in America on September 9th.
A．arrived
B．got
C．reached
单项选择题
Excuse me. May I have a piece of ______,please
A．water
B．knife
C．paper
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