Question

In his letter Jack said that the days ________ he spent at college was the happiest time ________ he had ever had all his life．

[　　]

A．

when; when

B．

when; that

C．

that; which

D．

that; that

Answer 1

答案：D
解析：

该题包含两个定语从句。第一个从句中spent需要宾语，应由that/which引导；第二个从句中had也需要宾语，但先行词有最高级修饰，只能由that引导。