79. Although early soap operas were first aired on evening radio in the 1920’s, they had moved to the daytime hours of the 1930’s when the evening schedule became crowded with comedians and variety shows.

(A) were first aired on evening radio in the 1920’s, they had moved to the daytime hours of the 1930’s
(B) were first aired on evening radio in the 1920’s, they were moved to the daytime hours in the 1930’s
(C) were aired first on evening radio in the 1920’s, moving to the daytime hours in the 1930’s
(D) were aired first in the evening on 1920’s radio, they moved to the daytime hours of the 1930’s
(E) aired on evening radio first in the 1920’s, they were moved to the 1930’s in the daytime hours

Solution:

Tense*

A is wrong in the usage of ‘had’.
C and D are wrong in using ‘aired first’ rather than ‘first aired’.
E is awkward.
B is the best choice.

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