Police can easily recognize your fingerprints by machine, because every person’s fingerprints are _____.[ ]

Did you see the sports star last Sunday- No. I was too late. When I rushed to the hall, it was_______.

I had _________ entered the classroom when I noticed the headmaster was sitting at the back

The fish on the table ______. I want to eat it right now.

If _____ for an explanation for an advanced camera, I would certainly find it difficult.