17.I’m ____a diet, since I put ____ weight easily.
Many workers were organized to clear away remained of the World Trade Center.
A survey was carried out on the death rate of those who were infected by SARS, ________were surprising.
In recent years much more emphasis has been put______ developing the students productive skills.
_____ of water makes Death Valley a desert, but it is by no means devoid.
_____ their real economic situations, they got some relief fund from the government.