The Australian boy has a good ______of Chinese and can communicate with others freely.
| A．request | B．Command |
| C．demand | D．usage |
.
_____ that Marie was able to set up new branches elsewhere.
| A．So successful her business was | B．So successful was her business |
| C．So her business was successful | D．So was her successful business |
.
The last thirty years _____ the greatest number of laws stopping our rights and progress. Until today we have reached a stage _______ we have almost no rights at all．
| A．saw; which | B．see; where | C．are seeing; in which | D．have seen; where |
.
The field research will take Joan and Paul about five months; it will be a long time _____ we meet them again.
| A．after | B．before | C．since | D．when |
.
--- Have your working conditions improved?
--- No, _____ than before, I’m afraid.
| A．no better | B．a little better | C．not worse | D．no worse |
.
The Professor in the end decided to give the prize to____he believed had a good sense of English.
| A．who | B．anyone | C．whoever | D．whomever |