单项选择题

How can you keep the machine ______ when you are away

A．run
B．to run
C．running
D．being run

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The scorching summer and freezing winter in this city doesn't ______ me.
A．match
B．suit
C．adapt
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The manager signed the contract in the ______ of all the staff.
A．appearance
B．presence
C．view
D．attend
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