There are three _______(knife)in the box.
问题描述:
There are three _______(knife)in the box.
答
There are three knives(knife)in the box. 对吗?
答
There are three knives(knife)in the box.
knife变复数是不规则的,复数形式是knives
答
knives
答
There are three ___knives____(knife)in the box.
knife是可数名词,复数形式是knives