Problem: Carrie was more computer literate than Natalie, so

My choice: Carrie didn't need anyone to explain the software.

Problem: The flooring in the house was getting scuffed more easily than the garage floor because the

My choice: garage has concrete flooring.

Problem: Kenneth liked to dispose of their rubbish promptly but William did not because

My choice: Kenneth was very neat.

Problem: Jennifer was chosen to sing in the concert but Victoria was not because

My choice:
Jennifer had a very strong voice.