So first off, did you know that the entire question pool of Issue prompts is at the GRE website?

https://www.ets.org/gre/revised_general ... issue/pool)

Go there, and take a look.

I have read every one of them and have categorized them into 6 broad categories:

1) Education

2) Role of Government

3) Societal norms

4) Leadership

5) Technology

6) Adages.

After you read them, think about your opinion about some of the prompts, and it might make writing to the prompt much easier on test day. The prompts for the Argument essay are also at the website:
https://www.ets.org/gre/revised_general ... ument/pool

A simple formula for writing a solid Issue essay is to write a 5-paragraph response: Intro, 3 main points, and Conclusion. In the intro, simply restate the prompt and introduce your opinion about the prompt. Then, in paragraphs 2, 3, and 4 make your main points. And if you find that you have only 2 good main points that support your opinion, then make the 3rd point from the other side of the fence. In any case, be sure to make strong transitions between the main points. Your conclusion can be a restatement of the intro, but it needs a strong note of finality. If you need an additional word count, you can use an example or two. Examples are illustrative of the point you are making, and they can add significantly to the word count without heavy thought.

Remember, these GRE essay graders read hundreds and hundreds of essays!! I always tell my students to "make it memorable" or "write it so that I will WANT to read it to the end." In other words, put yourself in the shoes of the essay grader.

Feel free to reach out with further questions.

Good luck!