Problem: Write the next sentence for:
How to choose a merchant account provider
Get a variety of quotes from multiple sources.
Don't just go to your bank and take whatever it offers.
Check the fine print..

Next sentence: Don't just compare the rates on an offer and pick the lowest one, there may be other aspects of the deal, that may end up costing you more. Read all the terms and conditions carefully.

Problem: Write the next sentence for:
How to treat algae in a swimming pool
Test and adjust the pool's ph.
One of the main causes of algae growing in a pool is if the ph of the water gets too high, because this prevents the chlorine from killing the algae. Collect some water from the pool and test the ph levels with a test kit..

Next sentence: To lower the ph, add some muriatic acid or sodium bisulphate. To increase the ph, add sodium carbonate.

Problem: Write the next sentence for:
A man wearing a black shirt and black shorts is standing next to an exercise machine. he.

Next sentence: sits on the exercise machine and starts working out.

Problem: Write the next sentence for:
A man is located inside a gym. He is talking while several people are using rowing machines. he.

Next sentence:
shows the mechanics of how the machines work.