Matching with appropriate word

1. Mikhail Gorbachev is ____credited___________ with helping to bring about the end of communism in Europe.

2. She ____assisted___________ the doctor during the operation.

3. ___achieving____________ valid results is a major goal of all research.

4. World chess champion Gary Kasparov was recently beaten by a machine which was able to ___compute____________ its moves almost instantly.

5. Teachers in the program are __evaluated_____________ by the students at the end of each session.

6. Fire crews rushed to the ____site___________ of the plane crash.

7. Vitamins are best ____obtained___________ through fresh fruit and vegetables, rather than by taking pills.

8. Calcium is the ____primary___________ mineral needed for building and maintaining strong bones.

9. Local ____residents___________ are delighted with the new water park for children.

10. The government has ___instituted____________ a couple of changes to the driver's licensing procedure in an attempt to reduce the number of accidents involving new drivers.