Объяснение:
1. We lived here since 1997. - We have been living here since 1997.
2. I've been ill since two days. - I have been ill for two days.
3. How long do you know him? - How long have you known him?
4. Susie has seen a good film last night. - Susie saw a good film last night. Susie has seen a good film recently.
5. We've finished our homework just. - We have just finished our homework.
6. I've already wrote three letters. - I have already written three letters.
