1. A. is (Idiom)

2. B. are (vì accounts số nhiều)

3. B. makes (homework số ít)

4. B. like (chủ ngữ chia sau ''but also'')

5. A. helps

6. A. consists

7. C. so does tea

8. A. and (Both...and...)

9. B. is

10. C. am (chia theo về sau nor)

11. B. is (chỉ tổng thể nên dùng số ít)

12. B. Neither can I

13. C. are (chia theo vế đầu tiên)

14. B. makes

15. A. is

16. A. seems

17. A. has

18. A. is

19. A. Both/and

20. We did, either.

21. A. has come

22. B. is

23. D. were

24. B. are looking

25. C. is spent

26. C. are (vì cattle ở dạng số nhiều)

27. D. has just been sold

28. B. is not

29. C. like

30. D. were

31. A. is

32. A. is => are

33. A. are => is

34. B. were => was

35. B. are => is

36. D. were => was

37. C. has => have

38. C. are => is

39. B. is => are

40. C. Neither - nor

41. D. not only - but also

42. A/C. either/or

43. B. neither-nor

44. B. knows

45. B. either/or 

46. A. not only/but also

47. C. both/and

48. A. are

49. A. either/or

50. C. neither/nor

51. A. have

52. C. are => is

53. A. play

54. A. has

55. B. either/or

56. not only/but also

Chú thích: Both...and...: ...và... chia số nhiều

either...or...: hoặc...hoặc... chia theo V2

neither...nor: không....cũng không... chia theo V2

not only...but also...: không những...mà còn... chia theo V2