I had to ______ because someone else wanted to use the phone.
| A．give up | B．put up | C．hang up | D．ring up |
The garden is________with the sweet of flowers.
| A．full |
| B．heavy |
| C．busy |
| D．pleased |
A child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied________.
| A．places of interest |
| B．surroundings |
| C．surrounding |
| D．customs |
The policemen soon came to the________where the accident happened.
| A．place |
| B．spot |
| C．situation |
| D．location |
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 |