Write negative sentences to the following. 3) Water boils at 200 °C.

To make a negative sentence in the Present Simple tense, we usually use "do not" or "does not" before the main verb. In this case, since the subject is "Water" (third person singular), we use "does not". Water does not boil at 200 °C. Ответ: Water does not boil at 200 °C.