11.   Snowfall may make access by land impossible by the end of December.

12.   The city or the state could make his deal impossible by enacting a new law.

13.   The price of making negotiations impossible by issuing arrest warrants for one side can be terrifyingly high.

14.   Then he immediately made that impossible by demanding the senior NATO post in the Mediterranean for France, the Southern Command in Naples.

15.   This time the owners made a cave-in nearly impossible by instigating a rule requiring three-quarters approval of any settlement.

16.   Trouble is, the challenge was made to sound like mission impossible by his further comments.

17.   Christopher Columbus did the seemingly impossible by setting sail on a route to East Asia by sailing due west across the Atlantic Ocean.

18.   NATO and the United Nations say the U.N. peacekeepers should only be withdrawn if their mission is made impossible by the Serbs.

19.   The head of negotiations for a global test ban treaty said Thursday that agreement was impossible by the deadline Friday.

20.   Under U.S. Treasury Department regulations, legal travel by most Americans to Cuba is made impossible by restrictions on spending money on the island.