听力原文:W: Professor Clark said that the mid-term exam would cover the first 15 lessons.M
听力原文:W: Professor Clark said that the mid-term exam would cover the first 15 lessons.
M: Really? I thought it only included the first 12 lessons. Then I must spend the weekend going over the rest of the lessons.
How many lessons must the man review over the weekend?
A.Five lessons.
B.Three lessons.
C.Twelve lessons.
D.Fifteen lessons.