1)it is an oversimplified view of cattle raising to say that (all one has to do with cattle is leave them alone while they feed themselves, corral them, and to) drive them to market when the time is ripe.
a)....
b) all one has to do with cattle is to leave them alone to feed themselves, to corral them, and
c) all one has to do with cattle is leave them alone while they feed themselves and then corral them and
2) ( although dozens of New York's small museums are either devoted to local history or various ethnic groups, there are) many one-of-a-kine museums from Manhattan to the Bronx that are open for exploration on summer weekends.
a)....
b) although dozens of New York's small museums are devoted to local history or various ethnic groups
d) dozens of New York's small museums are devoted to local history or various ethnic groups, and there are also
3) Oberlin College in Ohio was a renegade institution (at its 1833 founding for deciding to accept) both men and women as students.
a) ...
c) when it was founded in 1833 for its decision to accept
d) in deciding at its founding in 1833 to accept