21.   A new device called the X-zylo, however, appears to have significantly upped the ante for this type of toy.

22.   After Amazon.com burst onto the scene five years ago, the online store only upped the ante.

23.   After decades of absence, Dodge has returned, upping the ante by buying up behind-the-car talent.

24.   After its hassles with the Atlanta and Salt Lake City organizers, the US Olympic Committee has upped the ante for future cities.

25.   After the defeat of the amendment in the Senate, Gingrich upped the ante in April.

26.   But a new law ups the ante on underage drinkers who get behind the wheel and get caught.

27.   But Beckman has not only upped the ante for other publishers.

28.   But for many in the industry, such backing only ups the ante.

29.   But instead of marking time over the winter, as Western diplomats hoped, both sides have been upping the ante.

30.   But he kept upping the ante, taking on subjects of greater status.