第1个回答 2007-08-30
Sorry,Teacher,I didn't understand the words you said.Can you change a topic?Thanks.本回答被网友采纳
第2个回答 2007-08-30
Sorry,Mr/Mrs (Please add the teacher's surname),I didn't catch what you said, can you please change a topic!?
第3个回答 2007-08-30
Sorry,sir.Icn't understand your words.Could you change a topic,please?
第4个回答 2007-08-30
sorry Mr.XX i can't understand your words.could you change another subject?
第5个回答 2007-08-30
Excuse me,sir,I did not understand your words.Could you change a topic,please?