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

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

paper紙,是不可數的
但是piece是可數的
一張a piece of
三張three pieces of
幾張紙:some pieces of paper
囙此選3