Problem: How does the sentence end?

Derrick paid for their dinner but Steven wanted their's for free because
Answer: Steven was mean.

Problem: How does the sentence end?

The metal miner scavenged the area and extracted the iron and no gold because the
Answer: gold was all taken.

Problem: How does the sentence end?

Quincy wanted to move each book from the table to the shelf so that they were in order of color, but the
Answer: shelf couldn't hold them all.

Problem: How does the sentence end?

Kevin always dreams throughout the day unlike Ryan, because
Answer:
Kevin loses focus on what he is doing easily.