[Q]: How does the sentence end?

After Christmas Jeffrey decided to go on a diet but Donald didn't.

[A]: Donald had not gained any weight.

[Q]: How does the sentence end?

Lindsey liked to go home for the holidays but Elena did not because

[A]: Elena had a very cold relationship with their family.

[Q]: How does the sentence end?

Melanie was happy to trade me her android phone for my tablet. I think the

[A]:
tablet is too large.