一： 单项选择（15小题，每小题1分，满分15分）
1. It took us quite a long time to get there. It was _________ journey.
A. three-hour B. a three hour C. a three-hour D. three hours
2. The young lady rushed into the room _______ she heard the noise.
A. the moment B. the moment when C. immediately when D. at the moment
3. -----What did the teacher say just now?
-----Sorry. I didn’t catch it. I ___________ something else.
A. think about B. will think about
C. was thinking about D. thought about
