单选题 Teacher: Richard, class begins at 9, and you are late.
Student: I know, but I missed my bus. I'm sorry.
Teacher: ______. You have to be here on time.
  • A. Don't mention it
  • B. That's no excuse
  • C. You needn't be
  • D. No problem
【正确答案】 B
【答案解析】[解析] 根据题意，老师没有原凉学生的意思，所以B是答案。