单项选择题

You'd better _______the whole article at once.

A．copy
B．copying
C．to copy
D．copied
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单项选择题
If you travel in a foreign country, a tour _______may save you a lot of trouble.
A．director
B．helper
C．guide
D．assistant
单项选择题
—How about having dinner at Sun Restaurant—It _______good.
A．smells
B．looks
C．sounds
D．appears
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