QUES: Continue writing.

There were more calluses on the worker's hands than on their feet because the 
+++++++++
ANS: hands were worked harder.


QUES: Continue writing.

Scarves suddenly replaced neckties on the fashion walkways all over the world. 
+++++++++
ANS: Scarves were trendy.


QUES: Continue writing.

William asked Joseph to help him get rid of the gray in his hair because 
+++++++++
ANS: William didn't know how to do it.


QUES: Continue writing.

The chef could not use the knife to chop the vegetable quickly because the 
+++++++++
ANS:
vegetable is too stale.