He _______ me five dollars for it, but at first he said to me the work would be done ______.
| A．charged ; free of charge | B．charged for ; charged for nothing |
| C．charged ; out of the charge | D．charged to ; free of the charge |
—What do you think of teaching, Bob?
—I find it fun and challenging. It is a job ______ you are doing something serious but interesting.
| A．where | B．which |
| C．when | D．that |
Life is like a long race ______ we compete with others to go beyond ourselves.
| A．why | B．what |
| C．that | D．where |
I have reached a point in my life ______ I am supposed to make decisions of my own.
| A．which | B．where |
| C．how | D．why |
Gun control is a subject ______ Americans have argued for a long time.
| A．of which | B． with which |
| C． about which | D．into which |
Whenever I met her, ______ was fairly often, she greeted me with a sweet smile.
| A．who | B．which |
| C．when | D．that |