sentence: Sarah had to ask Laura for help with setting MAC keyboard shortcuts because  OPTIONS:
- Sarah never used MACs.
- Laura never used MACs.
complete: Sarah never used MACs.

sentence: Christine but not Rachel had nightmares because  OPTIONS:
- Christine did not remember the creature they saw at the zoo.
- Rachel did not remember the creature they saw at the zoo.
complete: Rachel did not remember the creature they saw at the zoo.

sentence: The commercials for toothpaste were more effective than the ones for lipstick, because the  OPTIONS:
- toothpaste ads were entertaining.
- lipstick ads were entertaining.
complete:
toothpaste ads were entertaining.