Mr Wang （王健林） has been looking to buy a Hollywood studio for several years and was reported to be in talks with DreamWorks Animation last year, but a deal was not announced.请问：has been looking 是现在完成进行时，那么 look 这个动作到底完成没有？
Recently, _______ South China was hit by _____ unexpected heavy rain, which caused severe flooding.A. x; an B, x; x C. the, an D. the the答案为A ， 第一个空为什么不用 the 呢？谢谢！
This development is boosting wholesale demand from the food service segment by 4% to 5% a year across Europe, compared with growth in retail demand of 1 to 2 percent.请问老师，by 4% to 5% a year across Europe 如何理解？谢谢！
英语里破折号有特殊意义么，with 短语作伴随状语，修饰 big 还是 one？【来自Twilight】Of the three boys, one was big — muscled like a serious weight lifter, with dark, curly hair.with短语作伴随状语，修饰 big 还是 one？感谢大神指点迷津。
how to do整体是理解为名词吗？我总是习惯还原句子。比如where are you fron 还原就是you are from where,i do not know how to do 还原就是i do not know to do how对吗？其中to do 做宾语，how做副词修饰do,这样理解对吗？
Such writings are good for nothing_______ the naive, among whom they spread bad influences and foster bad habits.A.except bluffedB.except to bluffC.but bluffD.but to bluffed