Помогите,пожалуйста!
1.I…(see)his picture before I…(visit)the museum.
2.Mr Jones…(be)a teacher before he…(become)a journalis.
3.Tom was late.We...(discuss)everything when he....(come).
4.She...(not/know)why he....(do)it.
5.I...(know) why he ... (Ask)the question.a
6.When I...(see) the bike I...(understand)why Borus...(buy)it.a
7.he......(remember) that he....(lock) the door.
8.Daniel...(not want)to see the film because he (see)it before.

Had seen, visitedHad been, becameWere discussing, cameDoesn't know, didKnew, had askedSaw, understood, had boughtRemembered, had lockedDoesn't want, had seen