Question

I couldn't imagine ________ difficult it was for these badly injured victims to make it to the hospital.

A．when B．how

C．what D．where

 

Answer 1

B

【解析】答案：B　考查名词性从句。分析句子结构可知，动词imagine的宾语从句中，中心词是形容词difficult，所以用连接词how引导。