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He also felt that 5 the main thorough

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It is 10 that one in four children in the United States currently lives with only one parent.

many people hurried to submit their designs of the rebuilding of London But the task of 3 the city was given to Sir Christopher Wren.

_____________(环境一旦遭到破坏)，it takes many years for the system to recover

bodiless \"virtual\" communication may be less psychologically 7 than actual conversation,