1)lived и went
2)spent
3)has lost
4)тут не знаю или have returned или had returned
5) discovered
6) didn't know и discovered
7)I have already read
8)was discussing и had taken
9) вроде bakes
10)was reading
11)I have never been
12)told и got
13)нужно дальше предложение, так не могу сказать)))
