That the new managing editor rose from the publication's "soft" new sections to a leadership position is more of a landmark in the industry than her being a woman.

A. her being a woman
B. being a woman is
C. her womanhood
D. that she was a woman
E. that she is a woman

I know being is usually almost wrong..but it sounds "right"

Unlike most warbler species, the male and female blue-winged warbler are very difficult to tell apart.

A. ...
B. Unlike most warbler species, the gender of the blue-winged warbler is very difficult to distinguish.
C. Unlike those in most warbler species, the male and female blue-winged arblers are very difficult to distinguish.
D. It is very difficult, unlike in most arbler species, to tell the male and female blue-winged warbler apart.
E. Blue-winged warblers are unlike most species of warbler in that it is very difficult to tell the male and female apart.

B, C and E all seem okay! [/u]