Problem: How does the sentence end?

When Elena hears a puppy cry she runs to Erin for help, crying puppies is 
Answer: Elena weakness.

Problem: How does the sentence end?

Katrina stayed behind Carrie when they were climbing the hill because 
Answer: Carrie was much quicker.

Problem: How does the sentence end?

James is scared of the bird's beak but has nothing to worry about with the claw. The 
Answer: beak is sharp.

Problem: How does the sentence end?

Kayla decided to trim their hair but Monica did not as 
Answer:
Monica had very short hair.