高手进,英语语法问题The explanation given by the manager yesterday was

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高手进,英语语法问题
The explanation given by the manager yesterday was not at all****to us.
A. satisfy B.satisfied C.satisfactory D.satisfying
答案是C. D为什么不可以?
Annie Jump Cannon,****discovered so many stars that she was called"the census taker of the sky"
A. a leading astronomer B. who,as a leading astronomer C. was a leading astronomer, D. a leading astronomer who
答案是A. 我选的是B. 求解释

第一题,楼上的解释还好啦,简单说就如同interested和interesting这对词一样,前者是用来形容人对事物的态度了,助于一般是人,比如Sb is interested in sth...而后者则是说明某物或事件的属性的,主语是物,STH IS INTERESTING,而题中的这对词也正是如此,-ed形式的satiafied是用来说人的,主语是人,可以说we are not satisfied to the explaination；而-ory形式的statisfactory则是用来接物的,sth is satisfactory.
第二题,首先肯定A是正确的,这种句型逗号后面可以说基本上独立的一句话,只要看看是否合乎一般主谓宾规律即可A中的a leading astronomer是一个名词短语刚好充当主语；再说说,你选的B选项,这句话要是想选B应该这样说 Annie Jump Cannon who is a leading.看懂了么?因为who引导的是一个从句,从句也是句子也要有主谓宾的,如果用了as就没了宾语了,不合语法了.

英语语法问题不懂啊the manager was worried about the press conference 英语翻译• It follows,plainly,from the explanation given ab By ____ was the window broken yesterday? the teacher was given some flowers--------- by his students — The lecture given by prof.Smith was really interesting 请英语语法高手帮忙1. The book was sent to me by him“..to me by him ”t ..the descriptions given by people..的given? 英语语法问题被动语句He give me a book.改成I was given a book by him.而He the idea of a day for mother was by given by Miss Anna Jarvi The child was s_____ by his parents and was given everything A book was given to me by the teacher.(改为主动语态） The teacher ( this is the pen which was given by friend与this the pen which