单项选择题

The children ______ before they work in the Restaurant.

A．must be trained
B．must be over seven years old
C．should know how to read and write
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单项选择题
The Children Restaurant is very small because ______.
A．there are only small children working in it
B．there are only a few kinds of dishes
C．there are only twenty seats in it
单项选择题
The cost of a meal is ______.
A．the same for everybody
B．higher for adults than for children
C．lower for adults than for children
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