虚拟语气填空

break 是个瞬间的动词,这里要的是它的状态,be broken.其虚拟式是were broken.
这里填were broken.

When a pencil is partly in a glass of water, it looks as if it _____(break).应该填broke,虚拟语气中对现在表示虚拟，要用一般过去时