He met his previous teacher ________ at abroad.
| A．by any chance | B．by the chance |
| C．by chance | D．by a chance |
The black hero fought all his life to make black and white people _____.
| A．fair | B．same | C．equal | D．legal |
Only _____ people can have a good understanding of the lecture given by the scientist.
| A．educated | B．devoted | C．concerned | D．relaxed |
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 |