【題目】When people ______, they take air into their lungs (肺部) and let it out again.
A.eat
B.breathe
C.drink

【答案】B
【解析】eat 吃,breathe 呼吸,drink 喝,根據(jù)后半句 they take air into their lungs (肺部) and let it out again.(他們把空氣吸入肺部再讓它出來)可以推斷前半句意思是“當人們呼吸時”,故選B。

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