The millionaire passed away, leaving his children with a large ______.
_____who had arrested him three times for drug-taking.
To help Tom improve his English, I_______ that he take some online courses.
After retirement, she _____ herself in _______the poor children.
Preparations have been ______for the project and it can be started at any moment.
The professor, ________ his assistants, _______ conducting the experiment.