第一节单项填空（共30小题；每小题0.5分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. ------______, is the seat free?
------______, it’s taken. My friend will be back soon.
A. I’m sorry; I apologize B. I beg your pardon; I’m afraid
C. Good morning; Oh, that’s right. D. Excuse me; Sorry
2. If I drive in the city myself, I’ll probably get lost as I haven’t got __very good sense of ___direction.
A. the; a B. the;/ C a ; the D. a ; /
