Помогите ПОЖАЛУЙСТА поставить глаголы в правильную форму? 
1)Corol and Tom (to discuss) a lot of problems after lessons yesterday. 
2)Harry (to look) through the magazines for 20 minutes when he (to fall) asleep. 
3)Frank ( to transiate) Linda^s  speech from Spanish into French by 10 o^clock yesterday. 
4)When I ( to arrive) at the party some of my friends ( to go ) home. 
5) The Writes (to watch) a per for mance for half an hour when their son ( to come) there. 
6)At 3 o^clock last Saturday I ( to write) a composition for the Russian lesson. 
7)By 5 o^clock yesterday Dick already ( to work) on the computor. 
8)The pupils ( to go) to school after they ( to finish) their work in the school gaden . 
9)The doctor ( to examine) a child for 5 minutes when he heard some noise in the next room. 
10)Peter ( to translate) a very difficult article last Monday. 
11)We (to gather) raspberry for 3 hours when it began to rain. 
12) Sasha (to write) a letter to his friend at this time yeasterday. 
13)Yesterday morning Rose ( to get) up and (to look) out of the window. 
14)It ( to rain) the whole night yesterday. 
15) Sam (to tell) Diana about his winter vacation for  an hour when somebody ( to ring) the doorbell.