There are some [ ] on teacher's table 1.pieces of papers 2.papers 3.pieces of paper4.piece of papeers

问题描述:

There are some [ ] on teacher's table 1.pieces of papers 2.papers 3.pieces of paper
4.piece of papeers

paper 纸,是不可数的
但是 piece 是可数的
一张 a piece of
三张 three pieces of
几张纸:some pieces of paper
因此选 3