单项选择题


Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now, listen to the passage.
If students have a schedule conflict on the day of the exam, they should

A.take a make-up exam later on.
B.make every effort to come to class.
C.spend two extra hours in class later on.
D.do extra work at home.