小题1:.My brother a__________ a knowledge of computers by care

小题1:.My brother a__________ a knowledge of computers by careful study. 
小题2:.Can you tell me a________ of time if you’re coming?
小题3:.I a_________ of your trying to earn some money, but please don’t neglect your studies.
小题4:.They a_________ the value of the house at over $250,000.
小题5:.I’m d__________ to hear of your success.
小题6:.When you find someone hurt, you should perform first a___as soon as possible.
小题7:. Why do you value money so much? Is it e__________ to happiness?
小题8:.The d_________ air in the room will make food go bad easily.
小题9:. He has gone to the hospital for special t___________ because of his high fever.
小题10:..Remember to cover the burned area with a dry and clean b_________.