一.听下面5段对话，选出最佳选项。每段对话仅读一遍。（每小题1分,共5分）
( ) 1.A.Once a month. B.Twice a month. C.Three times a month.
( ) 2. A.For a week. B.Last week. C.Next week.
( ) 3.A. To Guangzhou. B.To Hainan. C.To Dalian.
( ) 4.A.5th. B.13th . C.8 days.
( ) 5.A.He has to study for a test.
B. He has to look after his grandparents.
C.He has to visit his grandparents.
