It is not a problem ______ we can win the battle;it's just a matter of time.( )
A. |
whether |
B. |
why |
C. |
when |
D. |
where |
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It is not a problem ______ we can win the battle;it's just a matter of time.( )
A. |
whether |
B. |
why |
C. |
when |
D. |
where |