1. The fire bell went during his lecture.

2. The class had barely started when the fire bell rang.

3. In case of fire bell.

4. He clanged the fire bell.

5. The clang of the fire bell aroused the town.

6. I was awakened from my sleep by a fire bell.

7. The owner accidentally set off the fire bell, and two fire engines arrived.

8. The children were drilled to leave the classroom quickly when the fire bell rang.