Question

[语法检查] 一句话:There are two types of error in statistics

Answer 1

要修改为：

There are two types of 【errors】 in statistics.

因为,error是可数名词,前面有【two types of 】“两类”修饰.of不能省略.

【two pairs of shoes】“两双鞋”,shoe是可数名词.

如果是不可数名词,of后面的名词只能用单数.例如：

two pieces of bread 两块面包

祝你开心如意!