errible accident is underinvestigation.—Actually, quicker action _____ thoseworkers trapped in the mine.

Mary is always ready to do some __ work at the local geracomium（敬老院）in her spare time.

joy, Della earned first the trust of herstudents and then ______of her colleagues

They are trying to ___ money___ a wildlife project.

Are you going to find a job or go on with your study to get a doctor’s degree? —I have had enough of ______ life. I want to find a job.