How to use the Preposition AT. 9th December 2016 • Amy Ward • Uncategorised How and when to use AT. In this short video I explain how to use the preposition AT. https://www.studyonlineenglish.com/wp-content/uploads/2016/12/at.mp4 Related Articles Different ways to express you’re happy 3rd February 2017 How to use the preposition IN 22nd December 2016