问题补充:
It’s really difficult to what he is trying to express.
A. leave out
B. break out
C. put out
D. make out
答案:
A. leave out
B. break out
C. put out
(答案→)D. make out
解析: 词义辨析。leave out遗漏,省略;break out爆发;put out拿出,出版;make out弄清楚,弄明白。句意:很难弄明白他到底要表达什么意思。所以选D。