单项选择题

I can see you have put a lot of time( )it．

A．into
B．on
C．with
D．under
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单项选择题
What’s the basis of your belief( )the product is safe
A．why
B．that
C．how
D．/
单项选择题
( )is a major port of Finland．
A．Helsinki
B．Good Hope
C．Nagoya
D．Darwin
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