Jawaban:

1. Two fishes were eaten by the cat.
2. The flowers were given by aunt for me.
3. The soup was cooked by him.
4. This competition was won by my sister.
5. A cup of tea was drunk by my brother and me.
6. My boyfriend brought some strawberries.
7. I am eating mie ayam.

Penjelasan:

Struktur passive voice secara umum:

Subject + to be (am/is/are) + kata kerja jenis v3

Penting : Objek yang ada dalam kalimat aktif diubah menjadi subjek di kalimat pasif.

Agar lebih mudah dimengerti, contoh dalam Bahasa Indonesianya kurang lebih seperti:

Andi memakan kue itu.

--> Kue itu dimakan oleh Andi

Semoga membantu, jangan lupa jadiin jawaban tercerdas ya, makasih ^^

- Sasuke