He didn’t selfishly keep for himself the money inherited from his uncle. Instead, he made a ______ contribution to help the community.

I have tried to keep his advice in ____ when writing this book.

John Snow found that the polluted water was _________ for the outbreak of cholera.

 Who would you rather ______ with the teacher about the problem?

 One way to ________ species under threat of extinction—whatever the cause—is to remove them to zoos or parks and feed them there.