Adjective or adverb?

Gap fill exercise

Fill in the gaps
This is a exercise to practise adjectives and adverbs.
If you do it , you will write a test.
Even for pupils this is not easy.
Sometimes a sentence may sound to a German student.
But when he thinks about it , he might find a mistake.
Have you got a teacher?
Can he explain things ?
My mother is an extremely cook.
She can cook extremely .