I found there ___two pieces of paper on the table

问题描述:

I found there ___two pieces of paper on the table
was还是were?
paper不可数啊,为什么答案是were
难道说类似的句子Two bottles of orange (are) on the table?

were
有量词pieces就可以是复数
再说了
Two bottles of orange
没有用bottle说橘子的
但你可以说 two baskets of oranges are