Here are possible answers to the questions, assuming they are asked to a student:
- I was at home at 7 p.m. yesterday.
- I was in the countryside in summer.
- Yes, my father was at home in the afternoon yesterday. / No, my father was not at home in the afternoon yesterday.
- My mother was at work yesterday.
- Yes, I was at home at this time yesterday. / No, I was not at home at this time yesterday.
- I was born in Russia.