【2015年襄阳市初中毕业生学业水平考试英语试题】---Did you talk back to your mother when you were a child? ---Yes. But now I realize I was wrong. I really regret ___________that silly thing to my mum.
— I think we can dance to Gangnam Style instead of doing morning exercises every morning. — __________. It’s more suitable for adults, not for us students.