Fill in the missing modal verbs: can, may, must, be able to 1. You will not… exist without water. 2. Water … improve exchange processes in activity of systems of an organism. 3. The reason of the majority of modern diseases … be in dehydration of an organism. 4. Pains in the back, displays of migraine … be caused by dehydration. 5. A person … live without water even for a week. 6. You … drink more liquid. 7. An adult … drink 1,5-2 liters of water a day.

Qkoddk    1   20.06.2020 22:52    41