3、ite. B.Black.C.Wedon'tknow.听第三段对话,回答第8小题。(B)8.WhattimedidMaryleave?A.At7:00. B.At7:20.C.At7:30.听第四段对话,回答第9小题。(A)9.HowmuchdoesadoubleroomcostforanightintheBlueSkyHotel?A.583yuan. B.483yuan.C.586yuan.听第五段对话,回答第10小题。(B)10.Whichsubjectdoestheboyhavesomedifficultiesin?A.Chinese. B