I like getting up very early in summer. The morning air is so good.A. to breathe B. to be

问题补充：

I like getting up very early in summer. The morning air is so good.

A. to breathe

B. to be breathed

C. breathing

D. being breathed

答案：

(答案→)A. to breathe

B. to be breathed

C. breathing

D. being breathed

解析：考查不定式用法。本题的不定式与形容词连用对句子的主语进行修饰说明。使用主动语态表示被动的含义。如The question is easy to answer。句意：我很喜欢在夏天早起，早晨的空气呼吸起来感觉很好。