19.聽下面一段對話,回答第18至 第20三個小題.
18.Who is the man?
A.Sally's teacher.
B.A policeman.
C.Sally's friend.
19.Why does the woman call the man?
A.Because she can't find her daughter.
B.Because her daughter didn't go to school.
C.Because she wants to ask for a leave for her daughter.
20.What color is Sally's skirt?
A.Brown.
B.Black.
C.Blue.