alia in her letter wrote that her__ is batakese, but she can also speak other languages, like madurese, indonesia, and english.​

Jawaban:

Alia in her letter wrote that her mother tongue is batakese, but she can also speak other languages, like Madurese, Indonesia, and English.​

Penjelasan:

Mother tongue disini itu artinya bahasa ibu. Itu adalah istilah yang digunakan untuk bahasa pertama yang digunakan.

atau alternatif jawaban lainnya bisa menggunakan "native tongue"