2.听下面一段独白,回答第11至第13三个小题. 11.What is Mary? A.A worker. B.A doctor. C.A teacher. 12.What color is Mary's car? A.Black. B.Red. C.White. 13.What do Mary and Jenny usually do in the afternoon on weekends? A.Play sports. B.Go shopping. C.See their friends.