He hadn’t seen his mother for a long time, so when he saw his mother he _____ crying.
The environmentalists said wild goats’ __________ on the vast grasslands was a good indication of the better environment.
In dealing with public relations,we should make every effort to prevent the __________ in personality.
We __________ Mr.Cox to be a fine professor.
At the __________ of the gun,the runners dashed from their starting points.
Mr.Smith used to smoke __________ but he has given it up.