Образуйте форму Past Simple в следующих предложениях

1) There isn’t a cloud in the sky, but it (to be) cloudy in the morning. 2) Mrs. Clay usually finishes her work at half past three, but she (to finish) it later yesterday afternoon. 3) Every day I help Mom about the house, but last week I (to be) very busy with my exam. So I (not to help) her much. 4) Tom isn’t playing tennis tomorrow afternoon, he (not to play) tennis yesterday. 5) We generally have lunch at 12.30, but yesterday we (to have) lunch later.

6) Now my brother smokes a lot, but he (not to smoke) before. 7) The Frasers live in a four–room apartment, but last year they (to live) in a small house in the country. 8) I don’t eat meal at all, but the other day I (to visit) my friends and (to eat) a pork there. 9) My dad always goes to work by car, but last week he (to go) to work on foot. 10) The weather is nice today, but it (to be) bad yesterday.

11) We rarely watch TV, but last week we (to watch) a lot of interesting programs. 12) I (to get) to the market myself last time, but now I don’t remember how to get there.

В каких предложениях???