单项选择题

When you don't know what to do next, never give up, just ______. working out your problem.

A．carry on
B．make sure
C．try out
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单项选择题
Could you tell me what ______
A．his e-mail address was
B．is his e-mail address
C．his e-mail address is
单项选择题
I like the black shirt, because it is ______ of the two.
A．the nicer
B．the nicest
C．nicer
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