II.情景对话(共5小题,每小题1分,满分5分。本部分答案请用签字笔写在第二卷规定的位置。)
   根据对话情景和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项。选项中有两个为多余选项。
A:Hello. Could I speak to the Airport Ticket Office ?
B:(Operator):Just minute,please. 
…
B:Hello. __ 6   _ 
A:Hello. __ 7   _ 
B:OK. We’11 have a Boeing 747 leaving at 8:45 tomorrow.