Story needs to be completed:
The man was less tired after using the lawn mower than the wood chipper, because using the

My choice:
wood chipper was strenuous.

Story needs to be completed:
The beach was a lot farther from Jessica and not Rachel because

My choice:
Rachel lived near the coast.

Story needs to be completed:
The scarf Bob's mother made for him would not fit around his neck, the

My choice:
scarf was too small.

Story needs to be completed:
Betty's boyfriend is uglier than Rachel's happens to be, so

My choice:
Betty is more likely to be unattractive.