1.   Constant activity can easily become an ineffectual nervous twitch.

2.   Using the generated income for training enables this activity to become an exchange mechanism.

3.   Sixty frames belonging to one of the hosiers were smashed, and by November such activity had become widespread, reaching into Leicestershire.

4.   This is to say that linguistic activities become significant because they are given significance by all participants -- not only the speaker.

5.   And rarely do its activities become public.

6.   By the end of the year, the concentrated activity becomes a frenzy, with volunteers working around the clock.

7.   Christmas activities became December activities, and holiday parties became winter parties.

8.   Cyberspace has become so popular that phone network activity has become extremely lopsided, local phone companies say.

9.   Dyke said at the time that he did not want his activities to become an issue in the campaign.

10.   Everyday activities become easier.