Ответ:
1) I wrote letter to my grandma 2 days ago
2) I spent 2 hours last weekend playing mobile games
3)When teacher came we sat up
4)We showed them what we found
5)We won the school competition
6)She sold her house
7)He ran away from home
8)He sang a song a week ago when we were in talent show
9)I sent him a message 6 minutes ago
10)I told her not to do that