iamhalf

a:did you finish typing that report?
b:yes i did,but i worked late.
a:so ,it must be a long report,i guess
b:exactly,12 pages.i spend three hours on it
a:by the way,what time did you go home?
b:i left the office at 9 oclock,i got home at 10
a:what did you have for dinner?
b:i ..... for sandwich and ate it on my desk.