`III.`

`1.` was

`2.` were

`3.` was

`4.` were

`5.` was

`6.` was

`7.` were

`8.` was

`9.` was

`10.` were `-` was

`11.` were

`12.` were

`13.` was

`14.` was

`15.` were

`16.` was

`17.` Was

`18.` was

`19.` Were

`20.` was

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

$\text{*Structure: Past Simple:}$ (thì Quá khứ đơn)

`-` Đối với đt tobe

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

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

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

`-` Ngôi thứ `1;3` số ít: I/he/she/it/tên riêng/ danh từ số ít`->` tobe là was

`-` Ngôi thứ `1;2;3 số nhiều`: you/we/they/danh từ số nhiều `->` tobe là were

`-` `DHNB:` yesterday, ago, last night, last Sunday/Monday/Tuesday/...