Problem: How does the sentence end?

They had to check the condition of the water again after fixing the pH and alkaline levels because the 
Answer: alkaline had increased.

Problem: How does the sentence end?

The diamond ring impressed Tanya but not Jennifer, since 
Answer: Jennifer had never cared for big fancy gemstones.

Problem: How does the sentence end?

It was easier for Lawrence to pretend to be a cowboy than Steven because 
Answer: Lawrence had a good imagination.

Problem: How does the sentence end?

The running time of the meeting was much greater than the earlier presentation, because the 
Answer:
meeting was more detailed.