1.When I (to meet) met Bob, he (to eat) was eating ice-cream. 2.When father ( to come)came home , we (to cook)were cooking mushrooms. 3.She was doing (to do) homework yesterday at 5 p.m. 4. He (to play) was playing the piano, when I (to phone) phoned him. S.He (to buy) bought many flowers to his wife yesterday to her birthday.