单项选择题
A. Sherry was brave before her boss. B. Sherry was afraid of her boss. C. Sherry was very nervous before her boss.
A. They could earn much, but they must work hard. B. Many of them earned their money in a dishonest way. C. They were all from poor families. D. They were all thin, young boys.
A. About 200 km. B. About 2,000 km. C. About 350 km.