When Roosevelt became president,he transformed this love of the West into concrete legislation,setting aside lands for national parks,national forests,initiating a vigorous national debate about conservation.为什么用setting 和 initiating?
老师您好,请问下面这个句子中,use为什么要用现在分词的形式。When we tell a story or joke we often describe the main events using the present (or past) simple and longer, background events using the present (or past) continuous.
The correct method of holding the weapon was as with a rifle. 这个句子中,as with结构应该如何理解?1、as 作为从属连词引导状语从句,省略了部分结构2、as with作为一个介词@teacherliu @语法探讨 两位老师好,能帮助学生解答一下吗...