单项选择题

A．He needs to press F7 to return to the document before he prints it.
B．He has to print the document to see the page numbers.
C．The printer is not working correctly.
D．The numbers are on the screen but they don’t print out.
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单项选择题
A．At the party.B．Back from the trip.C．Back at home.D．Still on the trip.
A．At the party.
B．Back from the trip.
C．Back at home.
D．Still on the trip.
单项选择题
A．The longest street in the world.B．A TV program.C．A country.D．The United States.
A．The longest street in the world.
B．A TV program.
C．A country.
D．The United States.
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