Here are some links that I think are great for studying English Conversation!
This is my favorite exercise on this website because I really think that learning from movies and TV shows is one of the best ways to improve your listening and speaking skills in a foreign language (besides real-life conversation). On this page there are a few clips from different movies and after you watch the clip there are comprehension questions to answer. Some of these clips are more difficult than others (some actors speak super fast!). The good part is that you can play the clip as many times as it takes for you to understand it! You also learn about American culture at the same time by watching movies that were popular or are still popular. If any of the movie clips interest you, you may want to watch the whole movie for even more practice!
I recommend the second part of this practice page for people who want to improve their listening, speaking, and pronunciation skills. You will hear a word on the recording and then you need to choose which word you hear. It may be easier to print the page off first before you listen to the recordings.
You can learn American idioms in alphabetical order. On the upper left hand side of the page you can click on a letter to learn idioms that begin with that letter.