Question

1. what revision, if any, should be made in sentence 28? it also served as a precursor to a still - active organization that was formed in 1946 to replace the league, the united nations. a still - active organization that was formed in 1946 to replace the league is what is now the united nations as a precursor. as a precursor to the united nations, a still - active organization that was formed in 1946 to replace the league, it also served. no change is needed.

Explanation:

The first option presents a clear, logical sentence that correctly identifies the original league as a precursor to the 1946-founded, still-active United Nations. The second option has inverted and confused the precursor relationship. The third option is grammatically awkward and incomplete in its meaning.

Answer:

A. It also served as a precursor to a still-active organization that was formed in 1946 to replace the league, the United Nations.