Help me, please!

We usually (to have) supper at 7 o`clock. My mother often (to cook) roast chicken for supper. Bet now she (to cook) omelet with cheese for supper/ Father (to read) a newspaper now. He always (to buy) newspapers near his office. Grandmother (to knit) a warm sweater for me now. She (to knit) very well.

тут нужно поставить глаголы в скобках либо в P. S. либо P. C. (simple continuous)

We usually have supper at 7 o'clock. My mother often cooked roast chicken for supper. But now she is cooking omelet with cheese for supper. Father is reading a newspaper now. He always buys newspapers near his office. Grandmother is knifing a warm sweater for me now. She knittes very well