问题
单项选择题
When yon（）an agent, it is usual to（）the appointment in writing.
A．appoint，make
B．want，make
C．need，make
D．need，do
答案
参考答案：A
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When yon（）an agent, it is usual to（）the appointment in writing.
A．appoint，make
B．want，make
C．need，make
D．need，do
参考答案：A