The young teacher found it hard to _____ his explanation in class to most of the class.
The tomato juice left a brown_____ on the front of my jacket.
The teacher was___ a very old man, but in fact he was only a little over fifty.
The dead dog still______ where I____it a moment ago.
He was doing much phsical exercise to build up his______.
Every one of_____ Peace Club is required to get_____better understanding of their system.