1. I can't leave the office ____ I finish my work. byuntil
2. I'll arrive there ____ five o'clock at the latest. byuntil
3. We can't do anything _____ they fix the computer. byuntil
4. We played the guitar ____ our fingers got tired. byuntil
5. ____ lunch time I was very hungry. I must remember to eat breakfast! byuntil
Unit 72