1. We ________ (get) everything ready before they arrived.2. He ________ (leave) ten minutes ago.3. I _______________ (work) for three hours when he called.4. Mr. Wang ________ (live) here for more than thirty years.5. When we got there the basketball match ________________ (start).6. Peter _____________ (finish) his homework before supper.7. He asked me what I ________ (do) during the summer holidays.8. Jim turned off the lights and then ________ (leave) the classroom.9. The classroom is clean. The students _________ (clean) it.10. That rich old man _________________ (make) a will before he died.