He was about to leave the office for home _______someone knocked the door and asked for some help.
The party will be held in the garden, weather_________.
I have two elder brothers, ____ in the army for ten years.
Nothing could be done at the meeting, the chairman_____ absent.
Bats are surprisingly long-lived creatures, some ____________ a life span of around 20 years.
UN Secretary-General Ban Ki-moon left for Pakistan this morning, his assistant _________ him there this Friday.