Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?
—When can I come for the photos? I need them tomorrow afternoon. —They_______ be ready by 12:00.
Was it _____ she heard with her ears ____ really made her frightened?
Beneath our feet _____ that our life depends on for food and clothing.
We must treasure every minute because _____ time is _____ forever.
---If I had time, I would go shopping with you. ---But you___ too busy.