Mr. Black was so____ to his research that he seldom cared about what happened around him.
__________ the city centre, we saw a stone statue of about 10 metres in height.
Tom was about to close the window __________ his attention was caught by a bird.
After the earthquake, the first thing the local government did was to provide __________ for the homeless families.
There's a __________ in our office that when it's somebody's birthday, they bring in a cake for us all to share.
The project had to be __________ due to a lack of funds.