Unfortunately,this afternoon i did

Unfortunately,this afternoon i did not finish my writing exam well because of lacking of time. To be honest , the invigilators did not tell the contestants know how much the time was remaining until it was only 10 minutes left so i had to finish my test immediately . Poor me , there were many things i had not written down on my paper yet.
P/s: I seriously advice all of you guys to ask the invigilator to know your remaining time so as to avoid lacking of time.
--Goodbye A mark