`ttcolor{lightblue}{#Miu}`

`1.` Did`-`paint

`-` DHNB: last year

`2.` made

`-` DHNB: `5` years ago

`3.` bought

`-` DHNB: two months ago

`4.` didn't watch

`-` DHNB: last night

`5.` helped

`-` DHNB: last Sunday

`6.` was`-` missed

`-` DHNB: last night

`7.` taught

`-` DHNB: in `1998`

`8.` Did`-`arrive

`-` DHNB: two weeks ago

`9.` studied

`-` DHNB: last Sunday

`10.` had

`-` DHNB: this morning

`-----------`

`-` Thì HTD với was`/`were:

`(+)` `S` `+` was`/`were

`(-)` `S` `+` was not `/`were not

`(?)` Was `/` Were `+` S `+`...?

`-` Thì HTD với động từ thường:

`(+)` S `+` Ved`/`V2

`(-)` S `+` didn't `+` V1

`(?)` Did `+` S `+` V1?

Wh-qs `+` did `+` V1...?

`@` nhp.

Answer:

`1.` Did they paint

`2.` made

`3.` bought

`4.` didn't watch

`5.` helped

`6.` was `-` missed

`7.` taught

`8.` Did Mr Robison arrive

`9.` studied

`10.` had

`----------`

Quá khứ đơn:

`(+)` `@` S `+` V_ed/V2 `+` O

`@` S `+` was/were `+` ...

`(-)` `@` S `+` didn't `+` V_inf `+` O

`@` S `+` was/were not `+` ...

`(?)` `@` Did `+` S `+` V_inf `+` O?

`@` Was/Were `+` S `+` ...?

`@` Wh-word `+` trợ động từ `+` S `+` V_inf `+` O?

`-` DHNB: last, in `+` thời điểm trong quá khứ, yesterday,...