[Q]: How does the sentence end?

If only James could pour some more water into the aquarium then it will be to a habitable level for the fish. The 
OPTIONS:
- water is low.
- aquarium is low.

[A]: water is low.
QUES: Continue writing.

I prefer to read in the bathroom over the bedroom because others respect my privacy less when I am reading in the 

OPTIONS:
- bathroom alone.
- bedroom alone.
+++++++++
ANS: bedroom alone.
Problem: How does the sentence end?

She let the student retake his test to get a better grade because the 
OPTIONS:
- grade was too low.
- test was too low.
Answer: grade was too low.
sentence: The tire was flat on the car but was full on the truck, because the  OPTIONS:
- car had been recently repaired.
- truck had been recently repaired.
complete: truck had been recently repaired.
Donald told Michael how we was going to start eating healthy by eating rice.  
OPTIONS:
- Donald was motivated.
- Michael was motivated.
Donald was motivated.
Problem: Continue the following story.

To shoot the commercial, the director asked the actors to stand on soapboxes then stare into the cameras because the 
OPTIONS:
- cameras lifted them high to capture them..
- soapboxes lifted them high to capture them..
Here's how I want to continue it:
soapboxes lifted them high to capture them..