第一节:单项填空(共15小题;每小题1分,满分15分)
从A、B人、D四个选项中,选出可以填入空白处的最佳选项。
21. -Good
afternoon, United Airlines.
-Hello, I’d like to book one seat to
Ottawa on a flight leaving sometime before next Friday.
-________
A. Just a moment,
please. B.
Can I help you?
C. Gook luck to you. D.
What do you want?