It is my favorite subject.

它是我最喜欢的科目。

My favorite subject is art.

我最喜欢的科目是艺术。

My favorite subject is music.

我最喜欢的科目是音乐。

My favorite subject is science.

我最喜欢的科目是科学。

Geography is my favorite subject.

地理是我最喜欢的科目。

Math is my favorite subject.

数学是我最喜欢的学科。

My favorite subject is biology.

我最喜欢的科目是生物。

I like to paint so my favorite subject is art.

我喜欢画画，所以我最喜欢的科目是艺术。

My favorite subject is English!

我是英语课代表。

My favorite subject is music? What is yours?

我最喜欢的科目是音乐？你呢？