In order to improve English，________.
| A．Jenny’s father bought her a lot of tapes |
| B．Jenny bought a lot of tapes for herself |
| C．a lot of tapes were bought by Jenny |
| D．a lot of tapes were bought by Jenny’s father |
The police came here in the hope ___ they could learn about the cause of the traffic accident.
| A．that | B．what | C．which | D．How |
Her failure in the experiment suggested that she ______ the professor’s instructions.
| A．should not follow | B．would not follow | C．hadn’t followed | D．hasn’t followed |
The general spoke highly of such _____ as honesty, loyalty and bravery shown by the soldiers.
| A．virtues | B．vices | C．advantages | D．vacant |
In order to complete the project ahead of time, the boss demanded that John __ extra hours.
When a new system _____, the old one is abolished.
| A．came into being | B．comes into being | C．is come into being | D．come into beings |