几道LZM语法难题,I need the explanation

yanda

：
1，    Byron possessed powers of observation that would have made him a great anthropologist and that makes his letters as a group the rival of  the best novels of the time.
d, make his letters as a group the rival of
e, make his letters a group which is the rival of

2, In 1527 King Henry VII sought to have his marriage to Queen Catherine annulled so as to marry Anne Boleyn.
B, and so could be married to
C, to be married to
D, so that he could marry
E, in order that he would marry

3, C. C worked continuously through the 1880’ and early1890’ with the sculptor A. R.; since there are very few signed works of hers, the inescapable conclusion seems to one of C. conceiving and executing part of R.’s enormous production of that period.
B, conclusion of C. conceiving and executing part of R’s enormous production of that period seems inescapable.
C, conclusion seems inescapable that part of  R’s enormous production of that period was conceived and executed by C..
D, conclusion of part of R’s enormous production of that period having been conceived and executed by C. seems inescapable.
E, seemingly inescapable conclusion is that C. would have conceived and executed part of R’s enormous production of that period.

4, That the new managing editor rose from the publication’s ‘soft’ news sections to a leadership position is more of a landmark in the industry than her being a woman.
B, being a woman is
C, her womanhood
D, that she was a woman
E, that she is a woman

5, One legacy of Madison Avenue’s recent campaign to appeal to people fifty years old and over is the realization that as a person ages, their concerns change as well.
B, the realization that as people age, their
C, to realize that when a person ages, his or her
D, to realize that when people age, their
E, realizing that as people age, their

6,Founded in 1983, the magazine increased its circulation more than double since then, and its advertising.
B, has since increased its circulation more than double
C, has since more than double its circulation
D, since then more than doubled its circulation
E, more than double its circulation since then

dreadpower

题目一道一道问，加上下划线，好吗？？