Xíu em với. Ạ

`1`. I visited my grandparents yesterday.

`->` yesterday: ngày hôm qua `=>` `QKĐ`

`2`. She bought a lot of souvenirs last summer vacation.

`->` last summer vacation: kì nghỉ hè năm ngoái `=>` `QKĐ`

`3`. Mr Quang has taught Math for many years.

`->` `S` `+` has/ have `+` `V3`

`->` for many years: rất nhiều năm rồi `=>` `HTHT`

`4`. Jane returned to America two weeks ago.

`->` two weeks ago: `2` tuần trước `=>` `QKĐ`

`5`. He traveled to Nha Trang by coach yesterday.

`->` yesterday: ngày hôm qua `=>` `QKĐ`

`6`. How heavy was Lan last year?

`->` last year: năm ngoái `=>` `QKĐ`

`7`. This is the first time Liz has seen many types of fish.

`->` This is the first time `+` `S` `+` has/ have `+` `V3`

`8`. You ought to brush your teeth regularly after meals.

`->` ought to `+` V_inf: phải làm gì

P/S: ought to có mức độ nhẹ hơn "must"

`9`. What about going to the movie theater tonight?

`->` What about + V_ing: gợi ý làm gì

`10`. You must wash vegetables carefully before cooking.

`->` must + V_inf: bắt buộc phải làm gì

`->` Sau preposition + V_ing

`11`. I like films and my sister does, too.

`->` `S +` do/ does, too

`->` So `+` do/does `+` `S`

`12`. I went to visit my grandmother last weekend.

`->` last weekend: cuối tuần vừa rồi `=>` QKĐ

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

$\text{QUÁ KHỨ ĐƠN}$

`1`. Công thức

`-` Vtobe

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

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

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

`-` Vthường

`(+)` `S` `+` Ved/2

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

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

`2`. Dấu hiệu

`-` Các trạng từ chỉ thời gian trong quá khứ như:

`@` yesterday

`@` ago

`@` last + thời gian

`@` in the past

`@` `...`

`@hphuongggg@`