Нужна помощь!!!! Вставьте подходящие по смыслу модальные глаголы:

must, may, can, need, to have to, to be, able to

1.You …………….. not come to help them tomorrow: the work is done.
2.……………….. you help me now? – I am afraid not: I am in a great hurry. I shall be free in the evening. Come to my place at about eight, and I ………………………. to help you.
3.John ……………..not tell us the rules of the game: we know them.
4.He’s got a lung problem and he …………………go to hospital every two weeks.
5.How do you feel when you ……………..take a test? – I’m always a little frightened and unhappy.
6.We …………….not afford to pay the bills.
7.They ………………go to the country if the weather is fine.