I woke up this morning with a fright£¡

There appeared to be a mouse in my bed tickling my nose and 1 ____ scratching me. It had to be a mouse, for those tiny sharp little nails were scratching me all across my 2 ____ .

It couldn't have been a(n) 3 ____ as I didn't own any pets£» it couldn't have been a rat, because if what I had read about rats was 4 ____  £¬their sharp teeth could 5 ____ their way through solid stone. They do this because their front teeth never stop growing and this is the only way to keep them 6 ____.