1.   As a committee of experts gave crucial backing to the new human immunodeficiency virus drugs, it also moved to broaden use of some old ones in new combinations.

2.   As regulators gave crucial backing to the new human immunodeficiency virus drugs, they also moved to broaden use of some old ones in new combinations.

3.   Williams gave crucial initial backing to the museum.

4.   American Jews are among the most generous donors to Israel and provide crucial political backing in Washington.

5.   Last week, the government threatened to withdraw its crucial financial backing of the book fair if homosexual literature was openly displayed.

6.   Last week, the government threatened to withdraw its crucial financial backing for the book fair if homosexual literature was openly displayed.

7.   The army pledged support to the new leadership and he received crucial international backing from Russia and China.

8.   The army pledged support to the new leadership and Kostunica received crucial international backing from Russia and China.

9.   The government last week threatened to withdraw its crucial financial backing for the book fair if homosexual literature was openly displayed.

10.   The stance cost the PLO crucial backing from Gulf countries.