Imagine that you are writing an e-mail to a government official to ask him or her to provide information to your town about how to conserve water. Which sentence uses an appropriate tone for an e-mail to a government official? So we were thinking you could give us all the best tips. You would be the coolest if you taught us how not to waste water. It would benefit many people to learn how to help protect our environment. I’m not sure how much you know about conserving water, but I bet it’s a lot.