where are your "assignments #2"?

hey, i have only got the 10-page-ppt file from one of you (yi-cheng's). where are the others' files? please send them to me ASAP. i am thinking about meeting you all again at the end of this month (8/31). by the time we meet, you will have to present your assignments #3, which are the diagrams you made for our blogger activities.