The old man dependson his daughter to keep house.
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You ’ re really______ (use) ! You ’ re done it wrong again.
In passive sleep, the body is at rest, the heart slows down and the brain becomesvery______(active).
Foe a more ________(detail) explanation of cotton processing, pleaserefer to American Cotton Handbook.
Einstein was known asthe genius who discovered many useful _____(science) theories.