[Q]: How does the sentence end?

Doug had a lot of pain in his knee even after his shoulder was completely healed, because the

[A]: knee was weaker.

[Q]: How does the sentence end?

Mike chose to buy his jeans at the store rather than the outlet, because

[A]: store was cheaper .

[Q]: How does the sentence end?

The graduate school accepted Jennifer, but not Emily, because

[A]:
Emily 's grades were less satisfactory.