1. - They (work) [?] a lot in their childhood. - And now, (they-succeed) [?] ?
2. I can't get into my house: I (lose) [?] my keys. I (lose) [?] them when I was at school.
3. - (she-start) [?] training very early in her life? - Yes, that's why she (reach) [?] her goal today.
4. - (you - finish) [?] this exercise yet? - No, I (not - hear) [?] when you gave the instructions.
5. - (our grandparents - need) [?] computers in their youth? - No, because the internet (not - exist) [?] at that time.
6. - Here's Peter! (he-come) [?] to see you? - No, they (not - tell) [?] him that I am ill.