Pratt failed many times but he finally ____ to find a successful way to solve the problem.
| A．broke out | B．broke up | C．broke down | D．broke through |
The mother often tells her son to be a good boy, warning him to ______ trouble.
| A．hold back from | B．keep out of | C．break away from | D．get rid of |
I can ______ some noise while I’m studying, but I can’t stand very loud noise.
| A．put up with | B．get rid of | C．have effect on | D．keep away from |
John has put on so much weight recently that his mother has to ______ all his trousers to his measure.
| A．let out | B．give away | C．bring in | D．make up |
The government has _______ the parents to work with teachers in the education of their children.
| A．asked for | B．called for | C．looked for | D．paid for |
The plan ______ just because people were unwilling to co-operate.
| A．broke down | B．pulled down | C．turned down | D．put down |