Jane is one of the best students in her class who _____by their teacher.
The traffic problems we are looking forward to ______ solved should have attracted the government’s attention.
He seemed to be looking for the words ____ he could express his idea.
A modern city has been set up in ____ was a wasteland ten years ago.
To make members of a team perform better, the trainer first of all has to know their ____ and weaknesses.
In the new century, we still should _____ primary importance to the development of economy.