He went to town _____sell one of his paintings.

_______all kinds of difficulties，the workers have made rapid progress in the construction of the World Expo 2010 Shanghai．

Dolly wants to cycle round the world and she is really keen   the idea．

The study of natural history is not something to be left to biologists. In fact, their capacity _________ the time they can spend away from their offices is very limited.

As an athlete, nothing comes between Jim and his morning exercise.

I was so tired that __ I closed my eyes, 1 fell asleep．

One of the first things Joan did ____ getting home was to water her flowers．

The local government supplied the poor children _______free text-books and some companies supplied food __________ them.

—Did you be the match?
　　—Yes, we lost the match ________ one goal.

Mary has recently got engaged ________ a foreign teacher, who has been engaged ________ education research for years.