3. (-) I am not a student 

(?) Are you a student?

4. (-) He doesn't get up at 6

(?) Does he get up at 6?

5. (-) They aren't tall

(?) Are they tall?

6. (-) This isn't Hoa

(?) Is this Hoa?

7. (-) Duy and Vy don't walk to school

(?) Do Duy and Vy walk to school?

Học tốt. (-) là phủ định (?) Là nghi vấn

3,I am a student 

(-)I am not a student 

(?) Are you a student? 

4,He gets up at 6 ( gets chứ không get nhé vì He là chủ ngữ số ít mà) 

(-)He doesn't get up at 6

(?)Does he get up at 6 ?

5,They are tall 

(-)They aren't tall 

(?)Are they tall? 

6,This is Hoa 

(-)This isn't Hoa 

(?)Is this Hoa? 

7,Duy and Vy walk to school 

(-)Duy and Vy don't walk to school 

(?)Do Duy and Vy walk to school? 

#học_giỏi