[Q]: How does the sentence end?

Joe wanted to treat his acne in the car when on the way to work but the 

[A]: car is too bumpy.


[Q]: How does the sentence end?

Betty's dog is dangerous and she asked Laura to train her dog, because 

[A]: Betty is not good with dog training.


[Q]: How does the sentence end?

Jeffrey took the rope from Nick because 

[A]:
Jeffrey needed to tie his boat to the dock.