Problem: How does the sentence end?

Kathy's dog was having a seizure, so she put a pillow between his head and the floor, and the pillow helped his head not hit the 
OPTIONS:
- pillow .
- floor .
Answer: floor .

Problem: How does the sentence end?

Megan had to buy puppy training pads but not Katrina because 
OPTIONS:
- Megan had an indoor dog.
- Katrina had an indoor dog.
Answer: Megan had an indoor dog.

Problem: How does the sentence end?

Craig learned how to dance very well but Brett did not. 
OPTIONS:
- Craig put on a bad dance performance.
- Brett put on a bad dance performance.
Answer: Brett put on a bad dance performance.

Problem: How does the sentence end?

Vehicle problems of the worst kind made it difficult for Sandy to get around by car, so she went by bus. The 
OPTIONS:
- bus was convenient.
- car was convenient.
Answer:
bus was convenient.