This question tests our understanding of comma usage. Question 1, “form from tiny water droplets,” The answer is A “NO CHANGE.” ACT Practice Test English Answer Explanations 2015-2018 When you’re finished reviewing this official practice ACT test, start practicing with our own 10 full-length practice ACT tests-absolutely free during the pandemic. Writing Answer Explanations from 2015-2018 ACT Practice Test.Science Answer Explanations from 2015-2018 ACT Practice Test.Reading Answer Explanations from 2015-2018 ACT Practice Test.Math Answer Explanations from 2015-2018 ACT Practice Test.English Answer Explanations from 2015-2018 ACT Practice Test (this article).Other answer explanations in this series of articles: Please note that the 2015-2016 ACT practice test is the same one used in the 18 “Preparing for the ACT Test” guides. The ACT English test explained below begins on page 12 of the guide. Below are answer explanations to the full-length English test of the previously released ACT from the current 2015-2016 “Preparing for the ACT Test” (form 1572CPRE) free study guide available here for free PDF download.