問題詳情

     Ordinary toilet paper is not a problem for  41   . It disintegrates rapidly, after being  42  , into the fibers from which it is made. Wet-wipes are different. To keep them  43  while damp, before and  44  use, their fibers are held together by resins. But these resins also hold them together after use,  45   they do not disintegrate.
41.
(A) sew
(B) sews
(C) sewers
(D) sewing

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