To make members of a team perform better, the trainer first of all has to know their ______ and weaknesses.
I often have conversations with John over ______ telephone, while I keep in touch with Tom by ______ letter.
Time is limited and let's come______ to the point.
Can you imagine the trouble that they had ___ the orphan in the terrible years?
It is the second time that I____ in Beijing
the deadline approaching, we found ourselves a loss about what to do.