Question:
Elena got more presents at Christmas than Samantha, because

Answer:
Continue the sentence -- Elena always sent a thank-you card to the gifters.

Question:
Elena is buying a coloured contacts for her friend Carrie, because

Answer:
Continue the sentence -- Elena wants to surprise her.

Question:
The teacher always yells at Katrina for sleeping in class, but not Angela. This is because

Answer:
Continue the sentence -- Angela is the teacher's favorite.

Question:
Leslie had a pair of basketball shoes while Dennis had sandals.

Answer:
Continue the sentence -- Dennis was unprepared to play some sports.