Срочно!!!!! Помогите пожаааалуйста!!!!!!!!!

1. Did you see my friends yesterday, when they were crossing the street? 2. we were cooking the whole morning... 3. father was working in the study 4. we were skiing... 5. what were you doing at 7'oclock yesterday? обратите внимание, что в последнем предложении не может употребляться tomorrow, тогда уж yesterday, если нужно в past tense.