You_____ all those calculations! We have a computer to do that sort of thing.
| A．needn’t have done | B．must not have done |
| C．shouldn’t have done | D．can not have done |
Chinese arts have won the______ of a lot of people outside China.
| A．enjoyment | B．appreciation | C．entertainment | D．reputation |
In dealing with public relations, we should make every effort to prevent the______ in personality.
| A．contact | B．contrast | C．connection | D．conflict |
The environmentalists said wild goats’______ on the vast grasslands was a good indication of the better environment.
| A．escape | B．absence | C．attendance | D．appearance |
Usually a child's behavior is a ________ of his family environment.
| A．recognition | B．reflection | C．return | D．record |
I have read the material several times but it doesn't make any ________ to me.
A meaning B. importance C. sense D. significance