Though they both owned guitars Rebecca actually played while Amy didn't because 
OPTIONS:
- Rebecca knew how to read music.
- Amy knew how to read music.
Rebecca knew how to read music.

The monkey liked digging and preferred a stick over the scoop as the 
OPTIONS:
- stick was deftly handled.
- scoop was deftly handled.
stick was deftly handled.

Mary has bad dandruff, but Cynthia has never had that issue. 
OPTIONS:
- Mary lives in a dryer climate.
- Cynthia lives in a dryer climate.
Mary lives in a dryer climate.