It worried her a bit ____ her hair was turning grey.

It worried Mary a lot__________she would pass the college entrance examinations.?

A.whether             B.if                      C.that                   D.how?

It worried her a bit _____________ her hair was turning grey

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

It worried her a bit _____________ her hair was turning grey.

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

It worried her a bit ________ her hair was turning grey．

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