Although not easy, this is an excellent way to develop your short story writing skills. You are given an opening sentence and a final sentence. What comes in-between is up to you. There are 100 sentences for you to practice with. I would suggest that you try and write anything that will connect the two sentences together at the start, even a couple of lines. This will then allow you to fill out the middle. I have varied the degree of difficulty. Another way you can use these sentences is to reverse the order so that the opening sentence becomes the final and the final, the opening. Good Luck.