Mary wrote books to earn money while John gained his wealth ________ selling Mary’s works.
A. with B. by 
on D. through
The politician was deeply hurt when many of his former supporters voted _____ him, and he lost his place in the government.
| A．for | B．to | C．against | D．at |
The kind lady devoted all her life to _____ those homeless children.
| A．help | B．helping | C．be helping | D．being helped |
A large number of people are _____, and how can the local government ignore the problem?
| A．at work | B．in work | C．out of work | D．after work |
—Could I use your computer for a few moments, please?
—. I’m not using it myself.
| A．Come on | B．It depends | C．Go ahead | D．That’s great |
—Have you ___________?
—No. I had the wrong number.
| A．got in | B．got away | C．got off | D．got through |