问题补充:
The angry boy looked at his mother and shouted out the words in his heart for many years.
A. having been hidden
B. hidden
C. hiding
D. to hide
答案:
A. having been hidden
(答案→)B. hidden
C. hiding
D. to hide
解析:考查非谓语动词。这个愤怒的孩子看着他的母亲,喊出了藏在心中多年的话。过去分词作定语表示被动动作,根据语境可知选B。