IS this essay then:-
  Start like this:-
Every indiviusal on this ewarth has some dreams,some aiims and ambitionms.I am too having a dream that is "TO see my future through time maching".
Then narrate a incident how you by mistake went to labrortry where you see time machine and soo on.
No one knows what will you see, its totally depends on your imagination how you want to see. The future of you creation will be same as you imagined. No one knows how the wizard world is till J.K Rowling shows them with her imagination. So it you and your brain who creates. And moreover if we know what will we see in future then there is no need of time and and we can easily passed the exam by knowing the Question papers ;D