单项选择题

Conversation 1

A．How to operate machines.
B．How to use computers.
C．How to collect information.
D．How to be a manager.
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单项选择题
A．Room 201.B．Room 203.C．Room 204.D．Room 206.
A．Room 201.
B．Room 203.
C．Room 204.
D．Room 206.
填空题
The shop assistant priced the goods before (put) ________ them on the shelf.
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