I think that's unlikely to happen, but if that ______ occur, both America's and China's interest would be severely damaged.

—That T-shirt with Yao Ming’s picture on it      belong to     David . He likes him a lot .—No, it      be his. He hates black color.

The doctors are doing all that they _____, but the old man is still not breathing properly.

---Could I use your bike? ---Yes, of course you_________.

You _________ be punished if you break the school rules.