---Have you finished your fashion design?---Not yet. I’ll finish it if I ________ ten more minutes.
I stopped the car ____ a short break as I was feeling tired.
______ the students were when they heard the rock music!
______ you keep trying till the end, you will never know how strong you are!
---Look! The light is still on. Is Mr Wu working in his office?---No, it _____ be Mr Wu. He has gone to Nanjing for a meeting.
The fire lasted half an hour before it was ______ by the firemen.