1.   Children are supervised the whole day, except for rare moments when the teacher slips away and an older student replaces him.

2.   Even the rare moments of repose were filled with plans.

3.   He had noticed that in rare moments of stress she was apt to revert to her original Cockney.

4.   In a rare moment of vanity, Carl removed his glasses.

5.   It is a rare moment of literary shrewdness in Quills.

6.   Maybe never, Kirov dared to reflect, in a rare moment of optimism.

7.   The bombing spawned a rare moment of national consensus and healing.

8.   This is because the democracies stand at a rare moment in history.

9.   With Stephen, for example, there were only rare moments when she would come face to face with his desperate position.

10.   In a rare moment of unanimity the club members decided to throw a party for themselves.