21.  But where previous efforts used a spectacular climax to reward the reader for enduring the dictionary-size heft, this one merely fizzles out.

22.  But there is no guarantee that the proponents of the latest plan will fare better than previous efforts.

23.  But unlike previous efforts, the latest bill is not spurred by overtly anti-gay sentiment.

24.  By focusing on the financial, retail and communications industries, Nyberg is abandoning previous efforts to service customers in the consumer goods, transportation and public sectors.

25.  Critics of Diller note that he stumbled in a previous effort to broaden the audience for home shopping.

26.  Even the New York Civil Liberties Union, the major stumbling block to previous efforts to revise the law, might be more receptive this time.

27.  Even the strong emotional undercurrent of frustrated love, which has been the glue that held some previous Wenders efforts together, is absent here.

28.  For any of these projects to succeed, their directors might benefit from studying previous efforts to develop businesses in the Amazon.

29.  For me, the thrill of Thanksgiving has always been trying to outdo all previous efforts, without veering too far out of the realm of tradition.

30.  From the description of your previous efforts, it sounds as though you may not have dug deeply enough.