1. is (He/she/it dùng is)
2. are (you/ we/ they dùng are)
3. are (Hoàng and Thuy là họ: they dùng are)
4. am (I dùng am)
____________
1, She is a teacher
DHNB: I'm a teacher.
2. She lives in a city
DHNB: I live in a city.
3. No, it isn't
DHNB: The school is not near my house.
4. Yes, it is.
DHNB: There's a lake near the school