( ) I cannot understand is ( ) she wants to resign her present job.
(A)What; why
(B)Which; how
(C)That; why
(D)What; which
( ) Barbara Jones offers to her fans is honesty and happiness.
(A)Which
(B)What
(C)That
(D)Whom
To our anxiety, ( ) he could survive the operation was still a mystery.
(A)whether
(B)if
(C)when
(D)why