18. will go

next week -> TLĐ

19. will have

tomorrow -> TLĐ

20. met

3 weeks ago -> TLĐ

21. haven't met

since -> HTHT

22. haven't seen

recently -> HTHT

23. am reading

at the moment -> HTTD

24. have spoken

already -> HTHT

25. haven't finished

yet -> HTHT

26. haven't seen

lately -> HTHT

27. will practise

If + HTĐ, TLĐ

28. met

This is the first time -> QKĐ

29. hasn't learnt 

for + khoảng thời gian -> HTHT

30. hasn't lived, left 

HTHT + since + QKĐ

31. have been 

for + khoảng thời gian -> HTHT

32. hasn't lived

for + khoảng thời gian -> HTHT

33. is playing

at the moment -> HTTD

34. is coming 

Look! -> HTTD

35. learns

in free time -> HTĐ

36. drinks

never -> HTĐ/ HTHT

37. using

be interested in + V_ing