Is English Easy ? part 2

The insurance was invalid for the invalid.
There was a row among the oarsmen about how to row.
They were too close to the door to close it.
The buck does funny things when the does are present.
A seamstress and a sewer fell down into a sewer line.
To help with planting, the farmer taught his sow to sow.
The wind was too strong to wind the sail.
After a number of injections my jaw got number.
Upon seeing the tear in the painting I shed a tear.
I had to subject the subject to a series of tests.
How can I intimate this to my most intimate friend?
Originally published April 08, 2003.