2. were you walking in the park last Sunday afternoon? No, I wasnt.I was walking in the park last Saturday.
3. Were you chatting on the phone an hour ago? Yes, I chatting on the phone an hour ago
4. Was you friend eating dinner 8 o'clock last night? No, he wasnt. He was eating dinner 6 o'clock last night.
5. Were your parents working last Saturday morning? No, they werent. They were working last Friday morning.