1. Sam was writing a postcard at 10 a.m. yesterday.
2. My mother was cooking at 4 p.m. yesterday.
3. Kevin was doing the city at 7 o’clock yesterday.
4. Mary and Polly were buying souvenirs at 6:30 yesterday.
5. Mr. and Mrs. Smith were having tea at 5 o’clock yesterday.
6. Boris and Kate were playing badminton at 5 o’clock yesterday.
7. Liz was drawing a picture at 10 a.m. yesterday.
8. Peter was choosing a present for his friend at 12 p.m. yesterday.
9. You were enjoying the party at 8 p.m. yesterday.