To make members of a team perform better, the trainer first of all has to know their ___and weaknesses.
--- How about going out for a break? ---. We've been working for three hours.
It was announced that only when the terrible disease was under control _____ to return to their homes.
Spelling Bee is a contest _____ competitors, usually children, are asked to spell as many words as possible.
When asked to explain _____ he did to make his students so fascinated with his lessons, the teacher paused and thought deeply.
The subway was crowded with passengers going home from market, most of _____ carrying heavy bags and baskets full of fruit and vegetables they had bought there.