Problem: How does the sentence end?

Maria helped Elena cope with the newly diagnosed autism since 
Answer: Maria had experience with the disorder.

Problem: How does the sentence end?

Kenneth helped Randy prune the cherry tree because 
Answer: Randy was very busy the rest of the week.

Problem: How does the sentence end?

The new car will not fit on the trailer because the 
Answer: trailer is too short.

Problem: How does the sentence end?

Monica has much better handwriting than Felicia because 
Answer:
Felicia never took the time to practice their cursive skills.