It is known to all that a proper amount of exercise _______ to good health.

    A. benefits                 B. devotes                           C. values                              D. contributes

It is known to all that a proper amount of exercise ________ to good health.

It is known to all that a proper amount of exercise ________ to good health.

1. A.
   benefits
2. B.
   contributes
3. C.
   values
4. D.
   improves

It is known to all that a proper amount of exercise ________ to good health.

    A. benefits                  B. contributes              C. values            D. improves

It is known to all that a proper amount of exercise ______ to good health.

   A. benefits                            B. contributes               C. values                      D. improves