(+) S+V(ed)+O/Adv+.......

(-) S+ didn't (did not) + V(inf)+O/Adv+....

(?) Did + S + V(inf)+ ...?    Yes, S+did

                                          No, S+didn't(did not)

(+) S+was/were+.....

(-) S+ was not(wasn't)/ were not (weren't)+....

(?) Was/Were+S+O/Adv+....

37.Did Liz buy

38.put
39.didn't eat
40.taught
41.remembered
42.Did Nam return...

43.went
44.got
45.did he go

46.didn't go

47.met

48.bought

49.did he leave...

50.began

51.wasn't

52.were

53.Was/was

54.did he go

55.was

56.were

57.bought

58.did you leave

59.got/had

60.was

`C`ấu trúc chủ yếu : Thì QKĐ :

`-` KĐ : S + Ved / V2 `-` S + was / were + adj / n

`-` PĐ : S + didn't + V `-` S + wasn't / weren't + adj / n

`-` NV : Did + S + V ? `-` Was / Were + S + adj / n ?

`=>` `DHNB` : yesterday , last , ago , ...

`37`.Did ... buy ?

`38`.put

`39`.didn't eat

`40`.taught

`41`.remembered

`42`.Did ... return ?

`43`.went

`44`.ate

`45`.did ... go ?

`46`.didn't go

`47`.met

`48`.bought

`49`.did ... leave ?

`50`.began

`51`.wasn't

`52`.Were

`53`.Was / was

`54`.did ... go ?

`55`.was

`56`.were

`57`.bought

`58`.did ... leave ?

`59`.got / had

`60`.was

`\text{# Kirigiri}`