Fill in each blank with the appropriate form of the word in brackets. 1. Drinking water in some areas may be _________, and you can't drink it. (safe) 2. Encouraging children to eat and drink _________ is very important. (health) 3. Please give ________ to that charity to help the homeless after the flood. (generous) 4. The baby slept very _______ because the bed was really comfortable. (sound)