50个字就OK~Do you think there exit extraterrestrials?give reasons

50个字就OK~Do you think there exit extraterrestrials?give reasons
50个字就OK~
Do you think there exit extraterrestrials?give reasons

50个字就OK~Do you think there exit extraterrestrials?give reasons
I just can say that different people have different views.In my opinion,i believe there is extraterrestrials species,otherwise how can you explain prehistorical civilization