Vocabulary Check

lumber - alienation - ruminate - assiduously - elucidate

1. You actually have to do some _____ and timbering.
2. The study is ultimately concerned with urban _______.
3. My dear friend I promise you  I will improve, I will no longer, as ever been my habit, continue to _____ on every petty relaxation which fortune may dispense.
4. No doubt you are right there would be far less suffering among mankind, if men did not employ their imaginations so _____ in recalling equanimity.
5. Animal models can be used to _______ basic principles of the development origins of adult diseases.