Small cars are ___ of fuel, so they have more appeal for consumers.
| A．free | B．short | C．typical | D．economical |
The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
| A．to which | B．in which | C．of which | D．from which |
Parents complain their children are behaving unreasonably _____children consider their parents to be old-fashioned.
| A．while | B．when | C．or | D．after |
It suddenly_____ to me that I could use a computer to do the job.
| A．erupted | B．caused | C．occurred | D．happened |
Knowledge learnt from books doesn’t have the same effect on a child
as_____through practice.
| A．those | B．one | C．it | D．that |
London is a most beautiful city in Britain, _____ the River Thames.
| A．located in | B．lied on |
| C．situated on | D．stood in |