7.聽下面短文,回答16-20五個小題 16.What is Mike's father? A.A cleaner. B.A driver C.A seller. 17.When does Mike help his father clean the car? A.On Friday. B.On Saturday C.On Sunday. 18.How often does Mary help her mother cook dinner? A.Never. B.Twice a week. C.Every day. 19.What does Mary do after dinner? A.She cleans the kitchen. B.She washes the dishes. C.She sweeps the floor. 20.What does the speaker think of doing housework? A.Boring. B.Interesting. C.Good.