1, she swam when she was five

2, I went to a restaurant and ate a big dinner last saturday

3, Yesterday we went on an excursion in Da Lat   

4, Could he understand alegbra when he was ten years old?

5, You don't need to get your passport to enter the airport

Công thức thì QKĐ: (+): S + was/were//V (ed/ c2)...

(-): S + was/were + not ....// did not + Vnt ...

(?): (Wh) + was/were/did + S ...?

thì HTĐ: S + is/am/are//V (es/s/nt) ...

$\text{*Structure: Past Simple}$

`-` Với đt thường:

$\text{(+) S + Ved/V2}$

$\text{(-) S + didn't + V-bare}$

$\text{(?) Did + S + V-bare?}$

`-` Với tobe:

$\text{(+) S + was/were}$

$\text{(-) S + was/were not}$

$\text{(?) Was/were + S ?}$

------------------------------------

`1.` She swam when she was five years old.

Giải thích: thì QKĐ

`2.` I went to a restaurant and ate a big dinner last Saturday.

Giải thích: restaurant: nhà hàng

dinner: bữa tối

`3.` Yesterday, we went an excursion in Da Lat.

Giải thích: yesterday: ngày hôm qua

excursion: dã ngoại

`4.` Could he understand algebra when he was ten years old?

Giải thích: algebra: đại số

`5.` You don't need to get passport enter the airport.

Giải thích: passport: hộ chiếu

airport: sân bay

$chucbanhoctot$
$\textit{~KaitoKid!}$