_______ excited his parents most is that he had passed the entrance exam and was admitted into his dream college.

We were about to go out for a walk ______ it began to rain.

He thought she was a pretty girl     poorly she was dressed.

Physical Education in schools can teach us endurance — something we all need ______ life becomes tough.

Qian Xuesen tried many times _________ he found the solution to the puzzle about space technology.

—Do you have anything to say for yourselves?
—Yes, there is one point _________ we must insist on.

We need some more facts and figures __________ we take the final decision.

That is the small house less than 20 square meters, under ______Roof lives a large family of three generations.

------“The Leaning Tower of Pisa must be saved, __________ the cost.”
------“But Italy is now deep in the European Debt Crisis. It would be unlikely __________ its government hoped to ”