【题目】For many days I have been trying to what it is that makes Jack so annoyed.
A. carry outB. figure out
C. watch outD. stand out
在线课程【答案】B
【解析】
考查动词短语辨析。句意：许多天来，我一直在试着弄清楚是什么事使杰克这么生气。A. carry out实行；B. figure out弄清楚；C. watch out小心；D. stand out突出。根据下文what it is that makes Jack so annoyed可知应选B。