we can see some s[ ] on the hill.they are eating the grass.

问题描述:

we can see some s[ ] on the hill.they are eating the grass.

we can see some s[heep ] on the hill.they are eating the grass


sheep 羊  不可数名词,所以不用加s


如不明白请追问,请在客户端右上角评价点“满意”即可