ent Obama held talks with ChinesePresident Hu Jintao in Beijing, ________ economic recovery, climate change andstopping the spread of nuclear weapons

The cousins are alike in age, but they are as different as day and night

In the cafeteria, I saw my sister and her threefriends, none of ____ I had ever seen before.

The task _____ more difficult than we expect

He has to work hard to make a lot of money______ he can live a rich life.