______ for two days, Steve managed to finish his report on schedule.

Red Star Restaurant
The biggest and busiest restaurant in Jinan is seeking 20 waiters who have relevant (相关的) experiences in high-grade restaurants. About ¥800—1,500 per month.
Red Star Restaurant is located at 66 on Park Street.
Our phone number is 0531-8278-4560.
3 People wanted
Need 3 people who would like to work 4 evenings per week showing films. Earn $300 per week possibly. Call 469-867-6042.
Baby-sitter wanted
For a year. 3 days a week. Some flexible (灵活的) hours required.
Knowledge: above senior middle school.
Call 0431-478-9971.

翻译下列短语。（汉译英，英译汉）

I wonder ________ that brought the Olympics back to life.

某校共有三个年级，每个年级8个班，全校共有1100名学生，为了了解学生的近视问题，应如何选取样本？