In the early 1900's Roy Harris created ( and promoted) a ( distinctly) American ( style ) of classical music and greatly influenced a number of ( composer) in the United States.
The answer is D, but I think " distinctly" is wrong, too. should be distinct.
( Among the ) symptoms of measles, which take about twelve days ( to) incubate, ( are) a high fever, swelling in the glands in the neck, a cough, and ( sensitive ) to light.
The answer is D, A is right? then which is subject.
In the early 1900's Roy Harris created ( and promoted) a ( distinctly) American ( style ) of classical music and greatly influenced a number of ( composer) in the United States.
a high fever, swelling in the glands in the neck, a cough, and ( sensitive ) to light.( are) ( Among the ) symptoms of measles, which take about twelve days ( to) incubate