[Q]: How does the sentence end?

James picked the item in the car and moved it to a box and then the 
OPTIONS:
- box was full.
- car was full.

[A]: box was full.


[Q]: How does the sentence end?

the demand for the products in the market exceeded the products available, the 
OPTIONS:
- demand was too high.
- products was too high.

[A]: demand was too high.


[Q]: How does the sentence end?

He took away and sharpened the blades of the knife that was on the floor near the plant. Therefore the 
OPTIONS:
- knife  is safe.
- plant  is safe.

[A]:
plant  is safe.