Correct the verbs in sentences `1-5`. Make past continuous sentences. `1.` The firefighters were climb the ladder. `->` The firefighters were climbing the ladder. `2.` The police officers were ran very quickly. `->` `3.` Sara was make a sandwich. `->` `4.` The paramedic were working very hard. `->` `5.` My friends was watching a film about a flood. `->`

`2` .The police officers were running very quickly

`3` .Sarah was making a sandwich 

`4` .The paramadic was working very hard 

`5` .My friends were watching a  film about a flood 

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`=>` cấu trúc thì quá khứ tiếp diễn: 

`(+)` S+was/were+V-ing

`(-)` S+was/were+not+V-ing

`(?)` Was/were+S+V-ing

`-` I/he/she/it/danh từ số ít/danh từ không đếm được + was

`-` you/we/they/danh từ số nhiều + were

`-` was not = wasn't

`-` were not = weren't

`DHNB`:

`-` at + thời gian trong quá khứ 

`-`  at this time + thời gian trong quá khứ 

`-`  in + năm

`-`  in the past