To make members of a team perform better,the trainer first of all has to know their _____ and weaknesses.
The background music in an assembly line is designed ______.
Information and opinion gap exercises have to have some content ______ talking about.
We know our friends by their defects ______ by their merits.
Those bad conditions have given ______ to a lot of crime in the area.
The shoemaker can mend whatever ______.