单选题 Teacher: Tom, you're banging the table. It looks like you're angry. Boy:【D8】______But I can' t find the red block (积木). Teacher: Let me see. I can tell when I' m getting angry because my face feels hot and my heart beats faster. Did you feel anything like that when you banged the table just now? Boy: Yes, I think so. Teacher:【D9】______What else could you have done if you couldn' t find the block? Boy: Mmm...【D10】______Or find something else to play with. Teacher: That's great, Tom. A. Think about it. B. It must feel good. C. Ask you for help. D. I've looked everywhere.