11.   Of course, Birch has hurdles to overcome.

12.   OPEC and its new fellow travelers do have some hurdles remaining.

13.   Still, the team had several hurdles to overcome in its first season.

14.   Still, Nippon Credit has many hurdles ahead.

15.   Still, Real Quiet has additional hurdles to clear.

16.   Still, the settlement has several hurdles to clear before it is completed.

17.   The drug has so many hurdles yet to pass that this positive study is no more than a blip.

18.   The Huskies have gone through those trials, but still have more hurdles to clear.

19.   The proposals still have several hurdles to leap.

20.   The proposed American Airlines-British Airways partnership has other hurdles to clear.