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We were swimming in the lake________suddenly the storm started.

A.when               B.while                  C.until           D.before

We were swimming in the lake ________ suddenly the storm started.

       A. when               B. while                 C. until               D. before

We were swimming in the lake _______ suddenly the storm started.

A.  when               B.  while                     C.  until                      D.  before

We were swimming in the lake ______ suddenly the storm started.

   A. when      B. while      C. until         D. before

 We were swimming in the lake _____suddenly the storm started.

A. when               B. while                   C. until             D. before

 We were swimming in the lake _____ suddenly the storm started.

A. when          B. while       C. until   D. before

We were swimming in the lake _____ suddenly the storm started.

A. when               B. while       C. until   D. before

We were swimming in the lake ________ suddenly the storm started.

A. when

B. while

C. until

D. before

We were swimming in the lake ________ suddenly the storm started.

A. when

B. while

C. until

D. before

A. when

B. while

C. until

D. before