I think you're wise to find out first before you agree and believe it's a good idea to test the ..... first.

I think you're wise to find out first before you agree and believe it's a good idea to test the ..... first. (*) waters (*) springs (*) rivers (*) lakes


This is a companion discussion topic for the original entry at https://english.best/questions/4636,i-think-youre-wise-to-find-out-first-before-you-agree-and-believe-its-a-good-idea-to-test-the-___-first/