—What does the sign over there read？
—“No person___smoke or carry a lighted cigarette,cigar or pipe in this area.”
| A．will | B．may |
| C．shall | D．must |
It was impolite of him ____without ____good－bye
| A．to leave; saying | B． leaving; to say | C． to leave; to say | D．leaving; saying |
Development of science and technology must benefit people ______ harm them.
| A．rather than | B．other than | C．more than | D．better than |
When you finish reading the book, you will have ______better understanding of______ life.
| A．a; the | B．the; a | C．/; the | D．a; / |
____ the consequences of the chemical leaks, the specialists haven’t given final conclusion before they obtain accurate statistics.
| A．In addition to | B．As a result of | C．In spite of | D．With regard to |
It was not until I came here ____ I realized this place was famous for not only its beauty but also its weather.
| A．who | B．that | C．where | D．before |