题目

题型：不详难度：来源：

When Marx was in London, he _____ read at the library for hours.

A．would

B．might

C．could

D．should

答案

A

解析

would表示过去的习惯性动作, would 后跟行为动词，不跟表示状态的动词，往往有时间状语，而used to表示过去的习惯动作时后跟的动词无限制，无需有时间状语，如：
I used to like chocolate.        (√)
When I was a child, I would like chocolate.        (×)
I used to be a university student.          (√)
I would be a university student.           (×)