I tried to use a new chemical to clean the wall but it didn't work because the 
OPTIONS:
- chemical is stained.
- wall is stained.
wall is stained.

The snake fled the field and slithered into the hole, as the 
OPTIONS:
- field was safe at that time.
- hole was safe at that time.
hole was safe at that time.

Leslie went to cut the firewood since Donald was sick and 
OPTIONS:
- Leslie was a whole lot stronger.
- Donald was a whole lot stronger.
Leslie was a whole lot stronger.