简答题 [填空题]
Due to his health problems, Richard has to give up hard (　　) work on his farm.

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My storybooks (　　) most of the space of my two bookshelves in my bedroom.

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The following table includes a list of subjects at the (　　) of scientific exploration.

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Computer technology in all its phases from (　　) to software has become less expensive.

简答题 [填空题]
For the time being, this computer system is still in its (　　) stages.

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Problem solving, like other mental activities such as creativity, is hard to (　　) but generallyeasy to recognize.

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There is a growing(　　) to regard money more highly than quality of life.

简答题 [填空题]
I am eager to know where my (　　) classmates are now.