We haven't settled the question of ______ it is necessary for him to study abroad.

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

We haven't settled the question of ______________ it is necessary for him to study abroad.

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

We haven’t settled the question of __________ it is necessary for him to study abroad.

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

We haven't settled the question of ______________ it is necessary for him to study abroad.

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

We haven’t settled the question of __________ it is necessary for him to study abroad.

A. if       B. where

C. whether     D. that