My name is Robert， most of my friends call me Bob for short．
| A．then | B．instead | C．however | D．but |
The country’s populationsmall, and most of its populationin the mountainous areas.
| A．are; lives | B．are; live | C．is; live | D．is; lives |
Contemporary English is quite different from Old English. There has never been a year____the language was not changing.
| A．that | B．when | C．for | D．until |
To help a friend solve the problem troubling him,.
| A．a friend should be made known of his difficult situation |
| B．a man should be equipped with the kind of knowledge required |
| C．nothing is better than offering of knowledge required |
| D．keeping one’s promises is most important |
Not until all the fish died in the riverhow specious the pollution was.
| A．did the villagers realize | B．that the villagers realized |
| C．the villagers did realize | D．didn’t the villagers realize |
a reward of $1,000 will be given to can provide any clues to the case which has been investigated by the police for nearly half a year.
| A．whoever | B．whomever | C．anyone | D．who |