If you are out of ( ) when you do sports, that is nothing to worry about. ( 章节：4 难度：1)_做题室

单项选择题If you are out of ( ) when you do sports, that is nothing to worry about. ( 章节：4 难度：1): A、play; B、breath; C、air; D、energy

正确答案：B
答案解析：
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