1.   Boys undergo no period of constraint, in contrast to their lot among the Shavante.

2.   Britain has undergone three periods of revolutionary change.

3.   Indeed, in order to develop properly, brine shrimp eggs have to undergo a period of desiccation.

4.   The industry underwent a period of rapid expansion.

5.   The labour Market has undergone a period of rapid change over the last few years.

6.   The universe would have then undergone a period of rapid expansion, as in the inflationary models.

7.   It is an exciting time for Douglas Reyburn which is undergoing a period of change that is the most significant in its sixty year history.

8.   But for three years the tournament underwent a period of uncharacteristic precipitational abstinence, and was drier than Bob Dole speaking at an AA convention.

9.   In the early church, he said, sinners were expelled and allowed back only after expressing sorrow and undergoing a period of public humiliation.

10.   Surface geology appears as if it underwent a period of intense erosion followed by a long quiescent period.