12 December Dear Manager, I'd like to apply for 1)___ (三天假), starting from the 13th and finishing on the 15th, in order to2) ___(回老家看望父亲),who is now staying in hospital. I should be very much obliged if you will 3)___(准我假). As to the duties to be missed during my absence, I will do my best to make them up 4)___(等我一回来). Yours sincerely, Mary Wang