'Giúp em với ạ em hết biết làm rùi

Công thức thì HTĐ (V: tobe)

(+) S + am/is/are ..

(-) S + am/is/are + not .. 

(?) Am/Is/Are + S + ... ? 

I + am

S số ít, he, she, it + is

S số nhiều, you ,we, they + are

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1.

Are you American?

No, I am. I am Canadian.

2. 

Is he a student?

No, he isn't. He is a teacher.

3.

Are we late?

No, you aren't. You are early.

4.

Are they from India?

No, they aren't. They are from China.

`color{orange}{~LeAiFuRuiHuiBao~}`