(·吉林长春三校高三调研)You know that some people say more but do less others do the opposite.A.

问题补充：

(·吉林长春三校高三调研)You know that some people say more but do less others do the opposite.

A. once

B. while

C. when

D. as

答案：

A. once

(答案→)B. while

C. when

D. as

解析：B句意：你知道有些人说的多干的少，而其他人恰恰相反。前后两句为相互对比关系，故选while，意为“而”。