问题补充:
(·辽宁五校协作体一联)Willpower is a kind of quality, is it takes to do anything well.
A. what; which
B. what; what
C. which; which
D. which; what
答案:
A. what; which
B. what; what
C. which; which
(答案→)D. which; what
解析:D句意:意志力是一种品质,是做好任何事情所需要的。“isit takes to do anything well”为非限制性定语从句,先行词为willpower,先行词在定语从句中作主语,故用which引导;“isit takes to do anything well”这一定语从句中又含一表语从句,即“it takes to do anything well”,该表语从句缺少宾语(作takes的宾语),表示“事物”且语境中并无选择含义,故用what引导。