【题目】Your teacher's words will be ________you in all your life，so you should remember them forever.
A. honoured for B. of vital importance to
C. vital important to D. at the mercy of
在线课程【答案】B
【解析】考查词组。句意：你老师的话在你整个一生中至关重要，因此你应该永远记住它们。此处“of＋名词”相当于形容词作表语。be honoured for...因……而受到尊敬；at the mercy of受……摆布。根据句意可知选B。