试题题干
Fill in the blanks with an item as required.
With an appropriate relative pronoun or relative adverb:
The retired engineer had valuable experience on
we depended for the success of the project.
参考答案
试题解析
本题考查定语从句引导词的选择。先行词是名词experience，在从句中充当depend的宾语。depend on：依靠，依赖。空格前已经有介词on，所以填关系代词which。
句意：这位退休的工程师有宝贵的经验，这项工程的成功依赖于这些经验。