Question

--- Can I help you, sir?
--- I’d like to have 100 ______. I want my students to draw pictures.

1. A.
   piece of paper
2. B.
   pieces of paper
3. C.
   pieces of papers

Answer 1

B
考查名词。Paper是不可数名词，一张纸用a piece of paper;100张纸用100 pieces of paper。所以 选B。