四、词汇运用（共10小题；每小题1分，满分10分）

A.根据句意和汉语提示，在空白处填入一个适当的单词。

46. If you do something _____________(违反，反对) the law, you must be punished. 

47.He is a wise man who always makes a quick _________________(决定).

48.You should be _________(自信) enough to win the Chinese characters dictation competition.

49. On March 6, 2016, about 150,000 fans          (聚集) in Seoul and almost went crazy for BigBang’s performance.

50. How much time did you spend               (解决) the problem ?