21、A：I have never been late for school，but yesterday morning…

B：1__________________

A：I overslept．I had watched a football match between China and Brazil the night before last．When I went to bed，it was already 1：00 in the morning．

B：2__________________

A：Yes．But it didn't go off．By the time I woke up，my mother had already gone into the bathroom．I had to wait for her to come out．

B：You had to rush，didn't you?

A：Yes．I took a quick shower and then ran off to the bus stop without breakfast．

B：It's bad for your health if you don't have breakfast too often．

A：I agree．But by the time I got to the stop，the bus bad already left．

B：3___________________

A：I had to take a taxi，When I got on the taxi，I suddenly found out I had left my purse at home．I had no money with me．I had ring my English teacher to meet me at the gate and pay for me．

B：So you could get to school on time，couldn't you?

A：But unfortunately，it was rush hour．The car was as slow as I am taking a walk．

B：4____________________

A：You're right．I got to school very late．And I made an apology to my teacher．

B：What a pity! 5___________________