Sam _____ some knowledge of the computer just by watching others working on it.
| A．brought up | B．looked up | C．picked up | D．set up |
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 |
Contemporary English is quite different from Old English. There has never been a yearthe language was not changing.
| A．that | B．when | C．for | D．until |
It is not uncommon for thereproblems of communication between the old and the young.
| A．being | B．would be | C．be | D．to be |
He to go to Beijing today, but he postponed the trip when he heard that there would be a downpour at noon.
| A．was intending | B．would intend | C．had intended | D．intended |
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 |