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
网友回答
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。