Question

一道难题，求学霸帮忙

Answer 1

One day,I was walking in the field when I heard a strange noise from the sky. I looked up to see what was going on, a UFO! I saw a UPO flying in the sky.
At the same time,it began to land in the field,two aliens just came out. They had green skin and green eyes.They were not more than one meter tall. They looked strange and scaring. I was so frightened that I could do nothing but try to hide behind a tree.
The two aliens took out of something like a
shovel(铲子），they dug some earth and put it into a bag.After that they came back to the UFO and flew away.
What an unforgettable experience I had!

Answer 2

We all know that we live in a complex world .Although the technics of the human beings are developing all the time , we still got so many unsolved problems. Among all of this puzzles , UFO is one of the most noticable things.
Now as everybody knows ,UFO is what we call Unknown Flying Object for short.For a period of time ,once we mentioned UFO , we always communicate it with high-tech ,extra-terrestrials ,outter space culture and many other exciting things .
There are a lot of witnesses around the world ,affirming that they chanced to have seen some strange things in the sky . However , most of them cannot hand in the credible evidence .That's a pity.
With the long-term efforts of the ufologists , most of the incidents are finally considered as natural phenomenons or human conducts . Some so-called UFO is just a bird , a plane , a balloon or even a plastic bag .