Question

We would like to thank the founder of our library, without ________ help none of this would have been possible.

A．which

B．whom

C．whose

D．that

Answer 1

C

解析试题分析：考查定语从句。题意：我们要感谢该图书馆创始人，没有他的帮助这一切都没有可能。定语从句中名词whose="the" founder’s, 修饰名词help。C项正确。
考点：定语从句。