Mình có thể tham khảo nha:   #Happymoon - Nocopy

15. My parents usually drink tea in the morning.  ("parents" : số nhiều + V)

16. Linda often goes to bed at 10 p.m.   ("Linda" : số ít  +Vs/es)

17. My sister never does (her) homework on Saturday.   ("sister" : số ít  + Vs/es)

18. Peter and Mary rarely help their mother.   ("Peter and Mary" : số nhiều  + V)

19. She does eat in the evening.   ("She" : số ít  + Vs/es)

20. They don't like apple.   ("They" : số nhiều  + V)

21. My grandfather sometimes walks at weekend.  ("grandfather" : số ít  + Vs/es)

22. My father never goes to work on Sunday.   (như câu 21)

23. They usually watch TV in the evening.   (như câu 20)

24. We have English 2 times a week.

25. We do (our) homework everyday.

26. Does your father go to work by car ?     (như câu 22)

      - No, he doesn't  

27. Do you like Math ?

      - Yes, I am

28. Do they go to school on Sunday ?

      - No, they do

`19.` She doesn't eat in the evening.

`20.` They don't like eating apples. ( not like + V-ing: không thích làm gì )

`22.` My father never goes to work on Sundays.   

`@` Kiến thức thì hiện tại đơn : 

`-` Khẳng định : S + am/is/are + .....      

`-` Phủ định : S + am/is/are not .......

`-` Nghi vấn : Am/is/are + S + ...? 

`-` Dhnb : every morning, every afternoon,every day , often , always , usually.......