They have made medicine from a new plant _____a cure for fever.
| A．used it as | B．using as | C．and used as | D．used as |
34. Her clothes are very bright _____ colour.
| A．of | B．in | C．on | D．With |
33. The little boy is very clever _____ every subject.
| A．at | B．in | C．about | D．On |
32. When the Chinese delegation arrived at Vienna airport, they were received _____ cheers.
| A．in | B．for | C．on | D．With |
31. Einstein didn’t care for money. Once he used a check _____ $1000 as a bookmark and then he lost it.
| A．for | B．of | C．about | D．To |
30. More than 20 years ago he was badly wounded in the anti-Vietnam war. Since then he can only walk _____ an arm-chair .
| A．in | B．on | C．by | D．Over |