In dealing with public relations, we should make every effort to prevent the _____ in personality.

China has got a good ______for fighting against the flu with its careful and smooth organization.

To make members of a team perform better, the trainer first of all has to know their _____ and weakness.

Nowadays, a growing group of dieters are trying extreme calorie _____ for a long life by eating less food. 

There is very little ______ in protesting.It won’t help much.