Wang Fei's leg got hurt _____the Yuquan Mountains last weekend.答案为什么是while he was climbing
问题描述：
Wang Fei's leg got hurt _____the Yuquan Mountains last weekend.答案为什么是while he was climbing
而不是while climbed呢?
答
这一题考的是过去进行时的语法.
过去进行时的基本用法主要表示过去某一时间正在进行的动作.过去进行时如：He fell asleep when he was reading.他看书时睡着了.所以应该是用while he was climbing