This math problem .
We hope that with the help of the new skill, Liu Xiang can run _____ than before.
The students from Xinjiang enjoy staying in our school because everyone is _____ to them.
The old man used to raise many _____ to make a living on the farm.
I have two children, and _____ of them are working in the west of China.
The university student borrowed some money _____his friends to start his own business.