主系表结构例句

主系表=主语+系动词+表语。主系表例句有：1.She is really my mother. 2.She is my aunt's friend. 3.She is very friendly. 4.She is very strict 5.She is an artist.

1.I am a middle school student.

2.I am from China.

3.I am fourteen years old.

4.I am a fourteen-year-old girl.

5.I am very outgoing.

6.I am happy everyday.

7.I am interested in English.

8.I am proud of my parents.