Question

When ________ about his school life, Tim thought it colorful. A．asked B．asking C．to ask

When ________ about his school life, Tim thought it colorful. A．asked B．asking C．to ask D．asks

Answer 1

A

A考察状语从句的省略。当中状语从句的主语和主句的主语一致的时候，可以把状语从句的主语和be动词一起省略。本句ask与Tim之间存在动宾关系，所以使用过去分词的形式，在when后面省略了he was。故A正确。