语法与词汇 1.To be______I couldn't understand what he was getting at. If you wanted to know you'd better ask someone else.
【正确答案】 C
【答案解析】本题的意思是在承认自己不明白件事，短语to be honest的意思是“老实说”，符合题意。其他三项“A项sly狡猾的；B项humble卑下的，谦逊的；D项cowardly胆怯的”都不正确。因此C项为正确答案。