用方框中所给单词的适当形式填空，每词仅用一次(每空一词)。

Virtual Reality(虚拟现实)has already become a reality. By wearing a pair of VR goggles(护目镜)which is connected to your computer, you can experience a lot of things without the room. From climbing the mountain in the world to flying like an , the things you can experience with VR are amazing. this technology is still far from perfect, it is believed that VR will be accepted in the near future.