sentence: Dennis was buying more books while Donald was buying more video games because OPTIONS:
- Dennis was less serious.
- Donald was less serious.
complete: Donald was less serious.

sentence: Rob this time built the staircase using stone instead of wood because the OPTIONS:
- stone was on sale.
- wood was on sale.
complete: stone was on sale.

sentence: Steven passionately pursued the affections of Ian, and OPTIONS:
- Steven couldn't wait to go on a date together.
- Ian couldn't wait to go on a date together.
complete:
Steven couldn't wait to go on a date together.