杭州交通信息网毛姆刀锋简介百度百科:英语选择
来源：百度文库 编辑：杭州交通信息网 时间：2024/04/28 21:15:45
There are fifteen ___________ feeding on grass in the field.
A. cattles B. heads of cattle
C. head of cattle D. head of cattles
A. cattles B. heads of cattle
C. head of cattle D. head of cattles
B.
cattle是集合名词，不能变复数。
但head是可数。所以
一头牛： a head of cattle
两头牛：two heads of cattle
B
B.cattle不可以数