11.   In another sign that the environmental message has sunk into the next generation, Fratina says his children bring their drink containers home to recycle.

12.   Is the message sinking in yet?

13.   Sadly, though, the message is not sinking in.

14.   So far, his message is sinking in slowly.

15.   The message obviously sunk in.

16.   The message had better sink in soon.

17.   The message is sinking in.

18.   The message sunk in.

19.   Upon reflection, however, the message sank in that sexual harassment was not necessarily a reflection of feverish female imagination but a widespread workplace problem.

20.   But some people doubt the message will sink in.