把下列单词变成复数形式1.a piece of beef2.a cup of tea 3.a bottle of juice4.a box of glass
问题描述：
把下列单词变成复数形式
1.a piece of beef
2.a cup of tea
3.a bottle of juice
4.a box of glass
答
1.some pieces of beef
2.some cups of tea
3.some bottles of juice
4.some boxes of glasses
答
1.some pieces of beef
2.some cups of tea
3.some bottles of juice
4.some boxes of glass
glass不能变复数,这里应该是“玻璃”的意思.若是“眼镜”,a pair of glasses, 即便是单数也是glasses