11.   Rose asked me after the school bell had rung and all the little kiddies were safely in class.

12.   School bells might fail to ring, and bank vaults might not open.

13.   School bells are about to ring again across the country, and for most teen-agers that means a day that starts almost before breakfast.

14.   The final school bells are ringing and that means one thing for most families.

15.   There was a momentary hush, and then, as if a school bell had sounded, the tree erupted in chatter.

16.   To our surprise, we got back only in time for the final school bell.

17.   When the school bell chimed, the pair were still sitting there.

18.   The school bell, which rang a few minutes late, spared lives, officials said.

19.   The school bell rang in alarm, signaling to the children that they should run to the school chapel and lie on the floor.

20.   As the school bell rang late, however, the streets were relatively empty at the time.