Giúp mình bài này vs ạ

Cần gấpppppp

$\text{*Structure: Past Simple}$

`-` Đối với tobe:

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

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

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

`-` Đối với đt thường:

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

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

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

$\text{*Structure: Present Perfect}$

$\text{(+) S + have/has + Ved/V3 + ...}$

$\text{(-) S + have/has not + Ved/V3 + ...}$

$\text{(?) Have/has + S + Ved/V3 + ...?}$

$\text{*Structure: Present Simple}$

`-` Đối với động từ thường:

$\text{(+) S + V-(s/es) + ...}$

$\text{(-) S + do/does not + V-bare + ...}$

$\text{(?) Do/Does + S + V-bare + ...?}$

`-` Ngôi thứ `3` số ít: he/she/it/tên riêng/ danh từ số ít`->` V-s/es và trợ đt là Does

`-` Ngôi thứ `1;2;3 số nhiều`: I/you/we/they/danh từ số nhiều `->` V-bare và trợ đt là Do

`-` Đối với tobe:

$\text{(+) S + am/is/are + ...}$

$\text{(-) S + am/is/are not + ...}$

$\text{(?) Am/is/are + S + ...?}$

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`Ex4:`

`1.` Last night, I lost the keys so I call my roommate.

`2.` I lost the keys so I am finding them now. (thì HTTD: S + am/is/are + V-ing)

`3.` She visited Thailand three times.

`4.` She visited Thailand three times last year.

`5.` I have known great grandmother for a few years but she died when I was `6` years old.

`6.` I have known Tommy for a long time since we were kids.

`7.` He plays the piano at school but he doesn't like it.

`8.` He has played the piano since he was small.

`9.` We finished the test last week.

`10.` We have already finished the exam.

$chucbanhoctot$

$\textit{~KaitoKid!}$