1.（origin） The game is thought to have ________among the native peoples of Alaska.
2.（expend） Government _____________on scientific research has risen in the last few years.
3.（retail） Furniture and carpet________are among those reporting the sharpest annual decline in sales.
4.（value） Parents gave the school________support in its case for getting its facilities improved.
5.（utter） He is______dependent on the corporation for both his economic and emotional security.
6.（art） Elizabeth's got it all so nice — you remember how______she always was with colors.
7.（deliver） Mrs. Smith got a _______of fresh vegetables yesterday morning.
8.（safe） The refugees were groping their way through the dark, trying to reach_______.
9.（resent） At first, the project manager was______of anybody's attempts to interfere in his work.
10.（exist） The latest images confirm the_____of water on the planet's surface.
