unit 27  Oh,my! it's broken 
W: hello,i bought a pen in your shop just before 
M: yes,thank you very much 
W: now i came back to the hotel and try to show it to my friend,the pen is broken,i am afraid 
M: oh,is it? 
W: would you change it to a new one? 
M: yes,certainly,you have the receipt? 
W: yes,i do 
M: then would you kindly come to our shop with the receipt by 10 o'clock,we'll replace it 
W: thank you so much!