You have not yet answered my question _______ I can join in the party tonight．

A．whether         B．if              C．which          D．that

You have not yet answered my question _______ I can join in the party tonight．

1. A.
   whether
2. B.
   if
3. C.
   which
4. D.
   that

You have not yet answered my question ________ I can join in the party tonight.

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