1.   Their strengths are that they have a critical thinking ability.

2.   Their strengths are that they have a critical thinking ability and they can be objective.

3.   Contrary to previous research, a new study found no direct link between high blood pressure and a decline in thinking ability as people age.

4.   I always try to develop the thinking ability of all my employees so that we are now a strong team.

5.   Since this has not been conducted very much in physics classes, the outcome of physics classes in terms of thinking ability are meager improvements.