问题
选择题
When the reached the top of the hill, they _____ so they had to stop for a rest. [ ]
A. held their breath
B. out of breath
C. lost their breath
D. breathed deeply
答案
答案：C
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When the reached the top of the hill, they _____ so they had to stop for a rest. [ ]
A. held their breath
B. out of breath
C. lost their breath
D. breathed deeply
答案：C