新概念三课文中的一句话!I am trying to repair the bell .answered Bill .I ve been coming up here night after night for weeks now.you see ,I was hoping to give you a surprise.时态是怎么分析的?为什么要用 现在完成时的进行

新概念三课文中的一句话!I am trying to repair the bell .answered Bill .I ve been coming up here night after night for weeks now.you see ,I was hoping to give you a surprise.时态是怎么分析的?为什么要用 现在完成时的进行 why not have a try?I am enjoy you it sure will 组成一句话 我在这里英语怎么说是i am here 还是i am in here?随便能介绍一下,高三英语精听应该听那些材料,什么BBC新闻的,速度太快了,是不是可以每天听课文磁带,听一句跟一句,那么听新概念2的课文可以吗? 新概念三册第一课课文 新概念三的课文哪些是必背的? 新概念英语lesson79的问题在新概念英语lesson79中,有一句话是这样的：only on one occasion have i ever felt frightened,课文中的解释中提到：如果only加上一个状语放在句首,那么就要用倒装语序.请问老师 i no am not am I Bill 组成一句话, 把 i no am not am I Bill 组成一句话, I feel better and am more efficient.课文中这样的一句话（如题）,and am是个什么讲究?不懂啊,求指教! 哪篇课文中的一句话?人有旦夕祸福,月有阴晴圆缺. i try to study正确还是i am try to study正确? I am try to build a my best life I am e to try that new ride over there Try to make friends with me.I am nice.Really. （ ) i try it on? a.can b.am（ ) i try it on? a.can b.am c.do 选哪个 新概念二和三的课文的录音, 英语新概念三的必背课文是哪几篇? 高中生背新概念三 背哪些课文好啊