试题题干
Fill in the blanks with an item as required.
With a relative pronoun：
Just as Jerry got level with the top of the broken trunk ，the limb on 
he was standing cracked ominously under his feet.
参考答案
试题解析
本题考查关系代词的用法。分析句子结构可知，该句是非限制性关系分句，空处和前面的 on 构成了“介词+关系代词”的结构，在分句中作地点状语，又因为空处指代的是物，故应用 which。