19. C ( Parents là số nhiều)
20. B ( Your school là số ít)
IV.
1. doesn't have ( Sự thật -> HTĐ)
2. comes ( Sự thật -> HTĐ) - is staying ( Dấu hiệu nhận biết: At the moment -> HTTD)
3. don't drive ( Sự việc lặp đi lặp lại -> HTĐ) - go ( Sự thật -> HTĐ)
4. Who are you talking ( Dấu hiệu nhận biết : Now -> HTTD)
5. Where does your new friend live, Nga? - lives ( She : is, Sự thật -> HTĐ)
6. Are you in class 7A? - No, I am in class 7D.( Sự thật -> HTĐ)
7. is playing ( Câu cảm thán -> HTTD)
8. am not talking ( At present : Dấu hiệu nhận biết -> HTTD)
9. How often does she go fishing? - goes ( Sự việc lặp đi lặp lại -> HTĐ)
10. Are your friends students? - Yes they are ( Sự thật -> HTĐ)
V.
*Subjects and school: Vietnamese, Hisory, Geography, Physics, Maths, Science, lessons, English, homework, vocabulary, exercise.
*Art: Painting, Drawing.
*Musical instruments and music: The piano, the guitar, pop music.
*Sports: Football, badminton, basketball, volleyball.
*3 meals A day: Breakfast, Lunch, Dinner.
