单项选择题


Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage.
What happens to students who miss more than four classes

A.They may fail the course.
B.They may not have to make up the work.
C.They may have to do additional assignments.
D.They may not understand the labs.