21.The Bushmen are _______ hunters even though their weapons are primitive. A.favourite B.original C.sufficient D.e...

31.When heated, water changes into _______. A.solid B.vapour C.liquid D.air 32.What she achieved in her research ...

41.As a chairman for nearly ten years, Professor Smith has never _______ to anything dishonest. A.beard B.attached C....

Harvard University has been ____ the best university in a recent annual survey. A.listed B.catalogued C.ranked D.cl...

When we are reading,the important thing is to ____ the essential meaning,not to learn every single word. A.clasp B.grab...

It’s very dufficult to ____ the exact meaning of an idiom in a foreign language. A.exchange B.transfer C.convey D.co...

5. The 15 banks were likely to _____ about $530 million of the bad assets. A. turn off B. write off C. take off D. s...

4. The government threatened to _____ the already huge US trade deficit. A. add to B. add up to C. amount to D. get t...

3. The director _____ traffic safety in his talk. A. drew in B. settled down C. felt like D. dwelt on 答案： D draw...

2. We had to _____ Jim‘s poor table manners because he refused to change. A. put in for B. put up with C. put down D...