单项选择题

What can you do if the international line is engaged

A．Book a call.
B．Make a "person-to-person" call.
C．Call back outside office hours.
D．Keep on calling.
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单项选择题
What is the most expensive type of call
A．Direct dial.
B．Through the operator.
C．Reverse charge call.
D．Outside office hours.
单项选择题
From the news in Miami we know ______.
A．the mayor has agreed with the teachers' union
B．the teachers' strike will last long
C．students haven't been to school for two weeks
D．the mayor was trying to end the schools
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