Fibers of hair and wool are not continuous and must normally be spun into thread woven into textile fabrics. A. when to be B.if they are to be C. as are they D. that they
Fibers of hair and wool are not continuous and must normally be spun into thread ____ woven into textile fabrics.
A. when to be
B. if they are to be
C. as are they
D. that they are