虽然她的母语是英语，但她在学校学了普通话。

Although her ___mother ___tongue is English, she learned Mandarin at school.

他会说三种语言：西班牙语（他的母语）和葡萄牙语。

He speaks three languages: Spanish, his ___mother ___tongue, and Portuguese.

我的母语是我成长过程中在家说的语言。

My ___mother ___tongue is the language we spoke at home when I was growing up.