单项选择题

-I think it' s going to be a big problem. -Yes, it could be. I wonder ______we can do about it.

A．if
B．how
C．what
D．that
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单项选择题
The two roads meet ______a market lies.
A．at the place
B．where
C．there
D．at there
单项选择题
-Have you got any idea for the summer vacation -I don't mind where we go ______there's sun, sea and beach.
A．as if
B．if only
C．now that
D．as long as
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