Professsor is the teacher who teaches students in university.

Porcupine is the animal that has sharp fur that looks like a toothbrush.
( * It has sharp erectile bristles)

Today's class is very fun

My teacher looks like happy = My teacher looked happy, but she said,"I am very hungry. I had only some coffee."

I was very hungry too and so nervous, but It was fun.

It was also fun for me, David. You are a smart kid and I am impressed. I am looking forward to more exciting classes with you. :) Enjoy your vacation...- Teacher Liezl