It was only when the war broke out ______ he began to realize everything was too late.

1. A.
   until
2. B.
   that
3. C.
   then
4. D.
   so

It was only when the war broke out ______ he began to realize everything was too late.

   A. until           B. that          C. then          D. so

It was only when the war broke out ______ he began to realize everything was too late.

   A. until           B. that          C. then          D. so

It was only when the war broke out ______ he began to realize everything was too late.

   A. until           B. that          C. then          D. so