`1.` decided

`-` decide + to V-inf : quyết định làm gì

`2.` was

`3.` didn't enjoy 

`4.` watched

`5.` fell 

`-` fell from sth: ngã xuống từ 

`6.` took

`-` take sb to swh : đưa ai đến đâu ...

`7.` left

`@` Kiến thức thì quá khứ đơn :

`-` Khẳng định : S + V2/ed +.......

`-` Phủ định : S + didn't + V + ....

`-` Nghi vấn : Did + S + V + .......? 

`-` Dấu hiệu : last , yesterday , ago .....

$\\$$\text{1.}$ decided
$\\$$\text{2.}$ was
$\\$$\text{3.}$ didn't enjoy
$\\$$\text{4.}$ watched
$\\$$\text{5.}$ fell
$\\$$\text{6.}$ took
$\\$$\text{7.}$ leaved

$\\$- Công thức:
$\\$$\text{1.}$ decide to V : quyết định làm gì
$\\$$\text{2.}$ Thì QKĐ:
$\\$(+) S + V- ed / Cột II BQT
$\\$(-)  S + didn't / did not + V
$\\$(?) ( Wh-) + Did + S + V?