just at the time when it became obvious that health-care resources could not possibly meet the demands being made upon them.主句是什么,be made upon 理解.麻烦指教.

just at the time when it became obvious that health-care resources could not possibly meet the demands being made upon them.主句是什么,be made upon 理解.麻烦指教.

主句是
health-care resources could not possibly meet the demands being madeuponthem
be made upon 是定型成某种东西 即形成的意思