I agree with "rivers".In my opinion,if you want to improve your oral English,you should do more listening,and speak more.Actually,I'm a college student,too.My professor told me, chinese student like to say their Enghlish is very poor when they meet foreigner.So I think we should be more confident,don't afraid of making mistakes.Speak,speak,speak;listen,listen and listen.Little by little,the more you practice,the fluent you will be.But don't forget something,your pronunciation,make sure it's correct.Besides, the good voice and intonation make people more clear and enjoy.Hehe,I know it's not an easy process,both of us should put more effort into learning it.Wish you luck!No,wish we luck,haha.