1)Our host entertained us with many interesting stories of adventure, who had been a member of an exploration team working in the Arctic.
2)When I woke up I saw him asleep in bed, I had not heard him since he came back. Because I had been sleeping soundly.
3)Liu always did his work a little better than his fellow workers, which was why he got higher pay than others.
4)No student could answer that question, even Yao, who was usually quick in answering questions, was silent.
5)Lin looks alike Li, however, they are not related.
6)The old man hunched forward, they are not related. 这句有些怪,和上面的后半句一样.
7)Their work was well planned, everybody worked with great enthusiasm, thus they overfulfilled their quota. thus后面应该没有逗号
8)Mark Twain, a well-known American writer, whose experience as a pilot on a steamboat was no doubt an important factor that helped him to become a famous writer. 蒸汽船上的飞行员,好怪
有些句子理解起来很怪.实在是没有把握.我已经尽力了. 来自：求助得到的回答