1. One feels that there _____ any noticeable improvement in the human rights problem in Africa until all the African countries _____ their economic difficulties.

2. Before I got to the end of his article I felt I knew everything there _____ about the North America Free Trade Agreement.

3. ____ able to get hold of any new supporting evidence since I saw you last?

4. Since he became the chairman of the company he _____ used to working late, and he seems to enjoy it.

5. Until the very last minute we could not find out whether or not he _____ to sign the treaty.

6. By the end of the 20th century all the countries in the European Community _____ a political union.

7. The banks complained that they _____ adequate notice regarding this new monetary policy.

8. Hardly ever _____ such a gathering of distinguished scientists from so many different countries.

9. It is hoped that by the end of the century the growth rate of the world population ____ substantially.

10. Obviously there ____ a remarkable improvement in the condition of the patient since he ____ surgery.