试题题干
Fill in the blanks with the appropriate words given in the group.
which, what, that, nobody, anybody, none
The old fur trader trapped some animals of 
of us had ever heard before.
参考答案
试题解析
which指代animals；none of us··· 我们中没有人···。句意：老皮毛商人把一些我们以前从未听说过的动物困住了。