问题补充:
Being hard-working is of the highest to becoming successful.
A. important
B. to be important
C. importance
D. being importance
答案:
A. important
B. to be important
(答案→)C. importance
D. being importance
解析:考查固定词组:of +抽象名词=形容词,of the highest importance=the most important,最重要,句意是:要想成功勤奋是最重要的。选C。