His letter was so confusing that I could hardly make any of it.A. explanationB. meaningC

问题补充：

His letter was so confusing that I could hardly make any of it.

A. explanation

B. meaning

C. sense

D. guess

答案：

A. explanation

B. meaning

(答案→)C. sense

D. guess

解析：

make sense of 意为“明白”、“理解”。比较：make sense 意为“有意义”、“意思清楚”、“有道理”。