1. When I phoned my friends, they [?] (drink) at the party.
2. At 12 yesterday I (prepare) lunch, so I could not been there.
3. The children (play) hockey on the pool when it suddenly began to snow.
4. I (practise) the piano when he got home.
5. We (not / learn) all day.
6. He (not / read) the book about Shakespeare for leaving exam when she came in.
7. The birds (sing) all day, however I still felt very bad.
8. What (you / do) last week?
9. Although the sun (shine) all day, the snow did not melt.
10. While I (work) on the project, my husband had an accident.