文档介绍：主系表结构造句
I am a middle school student.
I am from China.
I am fourteen years old.
I am a fourteen-year-old girl.
I am very outgoing.
I am happy everyday.
I am interested in English.
I am proud of my parents.
I am glad to help others.
I am very energetic.
You are my best friend.
You are my favourite friend.
You are very honest
You are you are really beautiful.
You are really great.
You are a very hard-working student.
You are quite a hard-working student.
You are such a good child.
You are very helpful.
You are an honest person.
He is a scientist.
He is really essful.
He is an extremely kind boy.
He is very clever.
He is very lucky.
He is very energetic.
He is very confident.
He is a sunny man.
He is not too tall.
He is very serious.
She is really my mother.
She is my aunt's friend.
She is very friendly.
She is very strict
She is an artist.
She is quite beautiful.
She is only 5 years old.
She is my good friend.
She is our classmate.
She is a volleyball fan.
It is a useful dictionary.
It is my pet dog.
English is is very interesting.
Da Li is very touristy.
The school building is very high.
We are your fans.
We are in Class 67.
We are very busy .
We are really tired.
We are your new friends.
We are very healthy.
We are primary school students.
We are happy every day.
We are very confident.
We are very polite.
You are good stud