The conflict had developed into a stage ______ the two countries were gathering big troops on the border.

The conflict had developed into a stage ______ the two countries were gathering big troops on the border.

1. A.
   where
2. B.
   when
3. C.
   which
4. D.
   that

The conflict had developed into a stage ______ the two countries were gathering big troops on the border.

A. where               B. when             C. which        D. that

The conflict had developed into a stage ______ the two countries were gathering big troops on the border.

A. where               B. when             C. which        D. that

 The conflict had developed into a stage ______ the two countries were gathering big troops on the border.

A. where               B. when             C. which        D. that