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1. The cell samples are ________ by a lab.

2. Have you _______ yourself lately?

3. The solution ______ at 59.5°C.

4. Metal ______ as it cools.

5. Add just enough sugar to _______ the acidity of the fruit.

6. These results ________ sharply with other medical tests carried out in Russia.

Attacks of asthma ________ in frequency through early adult life.

8. We can ________ the energy that food provides in calories.

9. Scientists are trying to _______ what the Amazon will look like in 20 years' time.

10. Wax melts quickly when it is ________.

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