Problem: How does the sentence end?

Rebecca's collection of silver coins were tarnished, and Elena refused to clean them since they were rare coins. 
Answer: Rebecca was upset that the coins were still dirty.

Problem: How does the sentence end?

Cynthia liked to eat Greek food  but Felicia like to dine on Chinese food. 
Answer: Cynthia ordered the gyro for lunch.

Problem: How does the sentence end?

The dictator gained power of the other country by using tanks rather than the planes because the 
Answer: tanks were advanced.

Problem: How does the sentence end?

Kevin worried about some hidden meanings when he received a compliment from Robert, but 
Answer:
Kevin said thank you.