Problem: How does the sentence end?

When they were getting pets, Jessica wanted a lizard and Jennifer wanted a dog, because 
Answer: Jessica was allergic to dogs.

Problem: How does the sentence end?

Mary enjoyed wearing leather but not Elena because 
Answer: Mary thought it was okay to wear animal skin.

Problem: How does the sentence end?

During class, all students were given a lot to write in  their books using pens. The 
Answer: books were filled.

Problem: How does the sentence end?

Eli went to the library to research the contract instead of the website, because it was free to use the 
Answer:
library .