Помогите пожалуйста: раскройте скобки употребляя глаголы в present…

Помогите пожалуйста: раскройте скобки употребляя глаголы в present,past,future indefinite,present,past,future continuous.1 Nina (to celebrate) herbirthday yesterday. Her room (to look) beautiful,there (to be) many flowers in it. When i (to come) in, somebody (to play) the piano, two or three pairs (to dance).2 Look at these children! They (to skate) very well. 3 you (to skate) tomorrow? — Yes, i (to skate) from 3 till 5 in the afternoon. 4 He (not to come) last Monday. He (to be busy)? 5 When you (to come) yesterday? 6 Where you (to be) yesterday? — I (to be) at home. — I (to ring) you up at two oclock, but nobody (to answer). — Oh, i (to be) in the garden, i (to read) a book and (not to hear) the telephone. 7 She (to go) to school every day.