I bought ( ) China Daily from a streetcorner machine this morning.

题目

I bought ( ) China Daily from a streetcorner machine this morning.
1 a page of
2 a piece of
3 a copy of
4 a book of
选出选项,并说明理由以及 a page of.a piece of.a copy of .a book of.的意思.

答案

3.
一份报纸的说法