sentence: She put mustard on the sandwiches, but not on the fries, because she thought the  OPTIONS:
- sandwiches had been served tasty.
- fries had been served tasty.
complete: fries had been served tasty.

sentence: As his hair was very tough, he discarded the clippers and used scissors, as the  OPTIONS:
- clippers were useless.
- scissors were useless.
complete: clippers were useless.

sentence: I would like to learn to ride a bicycle rather than a unicycle. To learn to ride the  OPTIONS:
- unicycle is hard.
- bicycle is hard.
complete:
unicycle is hard.