10. It hasn’t rained for two months.
The last time
11. I last talked to her in 2004.
I haven’t
12. It has been a long time since Lan left her school.
Lan has
13. He hasn’t written to me for two months.
It has been
14. She last heard that song three years ago.
It’s three
15. It’s two years since I saw her.I haven’t __________________________________
Giúp mik