摘要： clothing
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Clothing made of man-made fibers has certain advantages over _____ made of natural fibers like cotton, wool or silk.
| A．the ones | B．one | C．that | D．what |
Clothing made of man-made fibers has certain advantages over ______ made of natural fibers like cotton，wool or silk.
| A．one | B．those | C．that | D．what |
Clothing made of man-made materials has advantage over _______ made of natural ones like cotton, wool or silk.
| A．one | B．what | C．that | D．the ones |