поставьте глагол, данный в скобках, в Present Simple (Indefinite) или в Present Continuous Active.

1. Water (to occur) abundantly in minerals. 2. He (to pour) water into a test-tube now. 3. The students (to take part) in the experiment at present. 4. Water (to be) an important constituent of the earth’s atmosphere. 5. Water (to dissolve) a part of nearly everything with which it (to come) into contact. 6. Most animals (to take in) large quantities of water with their food.
7.Water (occur) in animal and vegetable tissues
8. Man (use) water for countless purposes
9.Most animals (take in) large quantities of water with their food
10. absolutely pure water (do) not occur in nature

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