—Obviously, the boss looks happy again, doesn’t he?
—Yes. It’s said that he has ______ the difficult problem.
| A．succeeded in solve | B．tried to solve |
| C．managed to solve | D．been solved |
They are________to use chemical fertilizers in the field by law.
| A．forbidden |
| B．forbidding |
| C．being forbidden |
| D．forbid |
They're trying to________waste discharged by the factory for profit.
| A．expose |
| B．exhibit |
| C．exhaust |
| D．exploit |
The food wasn't good, but________it was cheap.
| A．at most |
| B．at least |
| C．in the least |
| D．not least |
I could see a car________， but couldn't make out what color it was.
| A．at the distance |
| B．in the distance |
| C．off the distance |
| D．from the distance |
He proved himself a true gentleman and the beauty of his ________was seen at its best when he worked with others.
| A．temper |
| B．appearance |
| C．talent |
| D．character |