The old lady died from the _____on herhead; she was _______when cleaning windows on the ladder when she fell off it

The whole world is undergoing the biggest financial crisis nowadays, ____ calls for international cooperation among all nations to get over

This kind of cup _______ of paper.

____ will he be back —In a week.　

____ is known to us all is that the old worker, for _____ life was hard in the past, still works hard in his seventies.