单项选择题

______ what to do, he went to the old man for help.

A．Not knowing
B．Not know
C．Not to know
D．Not known
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单项选择题
If the weather is ______ suitable, we will play the football match on Tuesday.
A．by means of
B．by any means
C．by no means
D．by all means
单项选择题
Will he be able to win the championship
A．I don't fear so
B．I don't guess so
C．I don't hope so
D．I don't think so
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