听下列五段对话和对话后的问题,选择正确答案。
( )1.
A.About 10 feet.
B.About 20 feet.
C.About 30 feet.
( )2.
A.Visit the Great Wall.
B.Visit some old men.
C.Visit a museum.
( )3.
A.Friday.
B.Saturday.
C.Sunday.
( )4.
A.No Photos!
B.No Fishing!
C.No Smoking!
( )5.
A.To have to a talk.
B.To visit some friends.
C.To visit the museum.