Let's review the verb to be (present simple)

My brother _____ a teacher.

• isn't

• aren't

• are

Where _________ from?

• you are

• are you

• is you

_______ from China?

• Is he

• He is

• Are he

A: Are you Peruvian? B: Yes, ______.

• I'm

• you are

• I am

A: Are they doctors? B: No, _______.

• they are

• aren't they

• they aren't

Where is he from?

• Yes, he is from Mexico.

• He's from Mexico.

• He's from Mexican.

____ Carlos and Mary from Japan?

• Is

• Are

• They

My best friend are a student.

• CORRECT

• INCORRECT

He isn't from Korea.

• CORRECT

• INCORRECT

Are you a tennis player? No, I'm not.

• CORRECT

• INCORRECT