Question:
Matthew was effective at verbal communication while Brett was quiet, so

Answer:
Continue the sentence -- Matthew was a good public speaker.

Question:
Climbing a tree was tough for Michael but easy for Justin because

Answer:
Continue the sentence -- Michael had weaker legs.

Question:
Donald really enjoyed the bass he had for dinner, but not Ryan because

Answer:
Continue the sentence -- Ryan dislikes seafood.

Question:
Since Elena was a homeowner and Erin lived in an apartment,

Answer:
Continue the sentence -- Elena sold their place of residence.