Problem: How does the sentence end?

The red book was easier to read than the Blue book as the
Answer: blue book was not written in English.

Problem: How does the sentence end?

I tried to put the egg in the cup, but it didn't fit because the
Answer: cup was too small.

Problem: How does the sentence end?

They were lighting the sticks with matches, but preferred the lighters, so the
Answer: lighters were quickly utilized.

Problem: How does the sentence end?

James found that the tank was surprisingly easy to operate and not the vehicle because the
Answer:
tank had simple controls.