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How to deal with the problem, you must make a d .
Do you ________ how to deal with the problem?
[
A
B
C
D
.Do you know ______ to deal with the problem? Could you tell me?
A. what B. how C. which D. why
Since nobody told her ________ to deal with the problem, she came to us for help．
A．when
B．how
C．what
D．where