Мне надо все ответы (Were you at shool yesterday?,Was your mother at home on Saturday?,Were you with your friend last night?,Were you in bed early on Sunday?

1) Yes, I was. I was at school yesterday.2) Yes, she was. My mother was at home on Saturday.3) No, I wasn't. I wasn't with my friend last night.4) Yes, I was.   I was in bed early on Sunday.