_ at his model plane over the weekend,he didn't complete it.Hard as he worked为什么句子什么
问题描述：
_ at his model plane over the weekend,he didn't complete it.Hard as he worked为什么句子什么
答
整个周末,他都努力地在做他的模型飞机,但他仍未完成
Hard as he worked,这种写法是倒装,用来强调他工作的如此努力,辛苦．