英语牛人请进,帮忙分析下面的句子成分,It has provided the key to unlocking many of our social problems.为什么会是unlockig呢?我感觉TO后应该是一个动词原型啊!我的理解是It （主语）has provided （谓语动词

英语牛人请进,帮忙分析下面的句子成分,It has provided the key to unlocking many of our social problems.为什么会是unlockig呢?我感觉TO后应该是一个动词原型啊!我的理解是It （主语）has provided （谓语动词 英语牛人请进,帮忙分析下面两个句子的语法结构,把各个句子成分帮我清晰地梳理下.1.Last year the Alliance for Childhood called for a stop to the further introduction to computers for young students.2.It was once consider this is the map which i got yesterday 帮忙分析句子成分.分析一下句子成分. 请帮忙分析这句英语句子的语法I tool the lift to the second level 这个句子的句子成分 帮忙分析英语句子成分!谢I watch him vanish from sight.一个句子里怎么可能2个动词呢?这是书上的例句, 请帮忙分析一下英语的句子成分不要长篇大论,最好简单易懂 英语学霸请进 帮忙分析错误原因 分析下面英语句子的成分I could have pointed out that he had rolled,not in a college and that at the end of his course he meant to reach for a scroll that read Bachelor of Science.帮忙分析一下句子成分谢谢 请帮忙分析下面这句话的句子成分：How long have you been teaching Chinese at this school? 英语复合句的句子成分 如何分析 英语句子成分具体分析 英语 分析下划线句子成分 请帮忙分析一下句子成分 一个英语句子成分分析 英语高手请进man is free in proportion as his surroundings have a determinate nature. 请老师帮忙分析下这个句子的句子成分: I asked him to lend me twenty pounds. 求帮忙分析I enjoy sharing my work experience的句子成分为什么my后面能连续接两个名词? 请帮忙分析一下这个句子的句子成分：Is there anything I can do for you?谢谢哦! I think no more significant contribution has Apollo made to history.帮忙分析这句话的句子成分