1.   He had done everything he could to obtain it.

2.   Consumers want the most for the money they have left, and businesses struggle to do what they can to obtain the business, he said.

3.   US intelligence officials contend that he and his associates are doing everything they can to obtain chemical weapons for use against US troops in Saudi Arabia.

4.   Schulz said the group was doing everything it could to obtain the release of Gao and the other detained academics in China.