All the universities have duty to ______ their students ______ of the quick development of the scientific world.
| A．make；known | B．have；understood |
| C．keep；informed | D．find；involved |
The children in the orphanage requested they ______on a tour across the city.
| A．take | B．took | C．be taken | D．were taken |
The passengers were ________in the traffic congestion which resulted from the accident ahead.
| A．held out | B．held back | C．held up | D．held on |
If ________, please pay a visit to me and have a further discussion of the issue.
| A．you are convenient | B．it is convenient |
| C．it at your convenience | D．it is convenience |
The news is ________that many a politician is gathering here in protest of the policy.
| A．getting around | B．getting through | C．getting up | D．getting over |
Do you knowHawking does not like about his speech computer?
| A．that it is what | B．what it is that |
| C．it is that what | D．what is it that |