When we climbed up to the top of the mountain we were all .A. out of the breathB. short

问题补充：

When we climbed up to the top of the mountain, we were all .

A. out of the breath

B. short of the breath

C. out of breath

D. short of breaths

答案：

A. out of the breath

B. short of the breath

(答案→)C. out of breath

D. short of breaths

解析：考查固定短语。Out of breath上气不接下气。句意：当我们爬上山顶的时候，我们都上气不接下气。