Đáp án:

$\longrightarrow$ Cấu Trúc QKĐ:

$\rightarrow$ S = I/ He/ She/ It/ Danh từ số ít + was

$\rightarrow$ S = We/ You/ They/ Danh từ số nhiều + were

㏒

$\text{4,Built}$

$\text{5,Sold}$

$\text{6,Did $\rightarrow$ tell}$

$\text{7,Bore}$

$\text{8,Tore}$

$\text{9,Wears}$

$\text{10,Swore}$

$\text{11,Crept}$

$\text{12,Slept}$

$\text{13,Wept}$

$\text{14,Kept}$

$\text{15,Swept}$

$\text{16,Paid}$

$\text{17,Laid}$

$\text{18,Broke}$

$\text{19,Chose $\rightarrow$ Spoke}$

$\text{20,Went}$

$\text{21,Didn't watch}$

$\text{22,Met}$

$\text{23,Did $\rightarrow$ Do}$

$\text{24,Did $\rightarrow$ Buy}$

$\text{25,Had}$

V)

1, Was

2, Was

3, Were

4, Were

5, wasn't

6,  wasn't

7, wasn't 

8,  weren't 

9, wasn't

10, Was → wasn't

`4.` built

`5.` sold

`6.` Did __ tell

`7.` bore

`8.` tore

`9.` wears

`10.` swore

`11.` crept

`12.` slept

`13.` wept

`14.` kept

`15.` swept

`16.` paid

`17.` laid

`18.` broke

`19.` chose - spoke

`20.` went

`21.` didn't watch

`22.` met

`23.` did __ do

`24.` Did __ buy

`25.` had

`V)`

`1.` was

`2.` was

`3.` were

`4.` were

`5.` wasn't 

`6.` wasn't

`7.` wasn't 

`8.` weren't 

`9.` wasn't

`10.` Was - wasn't

`-----` 

`***` Cấu trúc quá khứ đơn:

`(+)` S `+` Ved`/` Vc2

`(-)` S `+` didn't `+` V`-`infi

`(?)` Did `+` S `+` V`-`infi `?`

`-` `D H N B:`

`+` Yesterday: Hôm qua; Last night: Tối qua; Last week: Tuần trước; Last month: Tháng trước; Last year: Năm ngoái.

`+` In the past, the day before, với những khoảng thời gian đã qua trong ngày (today, this morning, this afternoon).

`+` Ago: cách đây. (two hours ago: cách đây 2 giờ, two weeks ago: cách đây 2 tuần…)

`+` at, on, in… (at 6 o’clock, on Monday, in June,…)

`+` When + mệnh đề chia thì Quá khứ đơn: khi (when I was a kid,…)