It was on the last day ______ a pressconference was held by some committee members

oblem of the widening gap between the rich and the poor, if not properly ______, can result in many serious social tensions.

How lucky he was! He ____ involved in the murder

What should I do, doctor— healthy,you should take more exercise.

What makes her so frightened?—Oh,it is the mouse that she______on her bed while looking for her watch.