His mind had already cracked with thirst .
A. He had already lost control of himself because of thirst.
B. He had to make good use of his mind because of thirst
C. He was so thirty that he tried to make full use of his mind.
D. He was so thirty that he could not manage to think of anything.
出自:河南师范大学-行政管理(本科)-大学英语Ⅱ