When a pencil is partly in a glass of water, it looks as if __
问题描述:
When a pencil is partly in a glass of water, it looks as if __
A breaksB has brokenC were broken D had been broken
我知道正确答案是C,但不知道为什么要用were,pencil 不是单数吗?
答
这里是虚拟语气