Clothing made of man-made fibers has certain advantages over ________ made of natural fibers like cotton, wool or silk.
A.this
B.one
C.that
D.what
【答案】C
【解析】句意:人造纤维制成的衣服比天然纤维,比如:棉花,羊毛或丝绸制作的衣服有一定的好处。这里填的代词是泛指不可数名词Clothing,用that可以特指可数名词单数或不可数名词,而且后面还有后置定语;one是泛指前面提到的可数名词单数;the ones特指前面提到的可数名词复数;what可以引导名词性从句。故选C。