I was reading a book at this time yesterday.They were writing a test from 5 till 7 yesterday.She was baking a cake the whole morning.We were playing volleyball the whole afternoon.He was buying some bread when I saw him.I wasn’t reading a book at this time yesterday.They weren’t writing a test from 5 till 7 yesterday.She wasn’t baking a cake the whole morning.We weren’t playing volleyball the whole afternoon.He wasn’t buying anything when I saw him.Were you reading a book at this time yesterday?Were they writing a test from 5 till 7 yesterday?Was she baking a cake the whole morning?Were we playing volleyball the whole afternoon?Was he buying any bread when you saw him?