4.根據(jù)你所聽到的短文內(nèi)容,從題中所給的A、B、C三個選項中選出正確答案.短文讀兩遍. 16.Teenagers join the TeenTravel Club to travel more略. A.freely B.cheaply C.quickly 17.Teenagers can buy TeenTickets略. A.At the post office. B.At the Teen Travel Club. C.At the bus station. 18.If you join the Teen TravelClub,you need to略. ①Tofill in a form ②To take it to the nearest bus station or postoffice ③Totake your ID card ④To take a photo of yourself A.①②④B.①③④C.①②③④ 19.The speaker is略. A.Making an introduction. B.Offering an invitation. C.Givingsome advice. 20.略when you use yourticket. A.You should pay the full price. B.You'd better use up thejourneys as soon as possible. C.Don't forget to take yourmembership card with you.