（1）What is Betty going to do？
A.Buy stamps.
B.Share stamps.
C.Collect stamps.
（2）Why did George stop collecting stamps？
A.Because he was busy with work.
B.Because he didn't like it any more.
C.Because he was busy keeping two cats.
（3）When will they talk about stamps at last？
A.On Friday afternoon.
B.On Saturday evening.
C.On Sunday morning.
（4）What is the possible relationship between the two speakers？
A.Friends.
B.Mother and son.
C.Guide and tourist.