Rewrite the sentences with Negative and question from He cleaned the floor last night -> ->

`(-)` He didn't clean the floor last night

`(?)` Did he clean the floor last night?

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

`-` Đối với đt thường:

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

$\text{(-) S + did not + -bare + ...}$

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

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

`( + )` He didn't clean the floor last night.

`(  ?  )` Did he clean the floor last night?

Thì quá khứ đơn (QKĐ):

( + ) S + V-ed

( - ) S + didn't + V nguyên mẫu

( ? ) Did + S + V nguyên mẫu?