PLEASE HELP!

[Learnin_Is_Rael_Important]

Hello everyone..... I am getting ready to take my G.E.D. language test.... and on the 2nd half there is a part where you have to write an "Essay" which I am not ready for, I have 1 G.E.D. language book, in it I learned how to use Coordinating Conjunctions, Conjunctive Adverbs, and Subordinating Conjunctions, which I am still not very good at. But my main problem is I don't have a clue on when to use a comma when there is no "connecting words." I searched online, but all i can find was the stuff I already learned the book, but nothing on using a comma without connecting words.....PLEASE SOMEONE HELP! btw someone who is not learning but have experience with this stuff for years.

[Torsten]

Hi, I suggest you browse through our TOEFL Essay Sample Section.

TOEFL listening discussions: Why is the student talking to the advisor?