Helpppppppppppppppppppppp

`4`, After Sara had turned off the washing machine, she cooked dinner

`5`, After David had done his homework, he played football with his friends

`6`, Before Laura phone Mark, he had already known the truth

- Trong quá khứ, hành động xảy ra trước chia thì quá khứ hoàn thành : S + had + PII, hành động xảy ra sau chia thì quá khứ đơn : S + Ved/ V2

- Before + quá khứ đơn : trước khi

- After + quá khứ hoàn thành: sau khi

- By the time + quá khứ đơn : tại thời điểm

Exercise `3`:

`1` was having – was cleaning (at 7.00 AM yesterday, while)

`2` was she doing

`3` were singing – dancing

`4` was playing – was sleeping

`5` Was she drinking

`6` were playing

`7` made – was sleeping

`8` was doing

`9` were watching – failed

`10` were talking – started – broke

Trong quá khứ, hành động đang diễn ra chia thì quá khứ tiếp diễn

+) S + was/ were + V-ing

?) Was/ Were + S + V-ing?

Hành động xen vào chia thì quá khứ đơn : S + Ved/ V2