我拿得準(zhǔn)以下的答案：
1.I'm not sure whom this book belongs to.
2.Mr.Brown came to China in search of a better future.
3.He took apart too old chairs in order to make a sofa.
4.John mentioned several judges' names.He didn't think highly of them.
5.I have no doubt that the search for the lost cultural relics will go on.
6.At the time,the two countries were at war.Large troops of soldiers were sent to the front (fighting).
7.She shared with me food and clothing seeking noting in return.