IV. Make negative sentences. 1) Jack is having dinner now. 2) They are working in the garden now. 3) My uncle took me to Africa with him. 4) They watched TV yesterday. 5) My friend is going to sing at a party tomorrow. 6) We are going to work in the garden next Friday, 7) Mary wants to be a doctor. 8) They read interesting stories at school, 9) You must eat a lot of meat. 10) Bob could swim when he was five. Составить отрицательные предложения