当我在睡觉时,一架UFO登陆在我家门口,用英语翻译下

问题描述:

当我在睡觉时,一架UFO登陆在我家门口,用英语翻译下

When I was sleeping, an UFO landed in front of my house.

When I was sleeping, a UFO landed in front of my house.

While I was sleeping,an UFO landed at my home .