Problem: How does the sentence end?

The dog belonging to Brett was able to walk a further distance than the one belonging to Lawrence because 
OPTIONS:
- Brett had their dog on a longer leash.
- Lawrence had their dog on a longer leash.
Answer: Brett had their dog on a longer leash.
sentence: Ryan witnessed Donald was attacked by someone on the street, so  OPTIONS:
- Ryan got testimony from him at the court.
- Donald got testimony from him at the court.
complete: Donald got testimony from him at the court.
The girl had more depression after watching the show than the movie because the 
OPTIONS:
- movie was a comedy.
- show was a comedy.
movie was a comedy.
Input: Continue writing.

Some tea spilled on the table and John cleaned it with a napkin. The 
OPTIONS:
- table got dry.
- napkin got dry.

Continued: table got dry.
Story needs to be completed:
The parents got their children masks as costumes for their children instead of robes because the 
OPTIONS:
- masks were expensive.
- costumes were expensive.

My choice:
costumes were expensive.
Problem: How does the sentence end?

Rebecca asked Erin to put something different on, because 
OPTIONS:
- Rebecca preferred more complex music.
- Erin preferred more complex music.
Answer:
Rebecca preferred more complex music.