Complete the sentences with suitable words.

Write one word in each gap.

I doubt that you've seen aliens. Could that have been an i _ _ _ _ _ _ n [ ]?

Donna spends hours looking at her r _ _ _ _ _ _ _ _ n [ ] in the mirror.

When I grow up, I want to study medicine and become a brain s _ _ _ _ _ n [ ].

A circle is a geometrical shape that has got no a _ _ _ _ s [ ].

What a d _ _ l [ ] book! How could a good author write something that boring?