听力原文:I am afraid that after a change in the science requirements for graduation, I may
(27)
A.I missed one science course because of a change in the science requirement for graduation.
B.I failed in one science course so I can not meet the requirements for graduation.
C.To meet the requirements for graduation, I am taking more than one course.
D.Because of a change in the science requirements for graduation, I am likely to have to take one more course.