Midway through her 1968 jazz album A Monastic Trio, Alice Coltrane switches instruments, swapping the piano for the harp. With the same fluid style that Coltrane was famous for on piano, she blank her fingers across the harp strings and creates a radiant sound.
Which choice completes the text so that it conforms to the conventions of Standard English?
sweep
are sweeping
were sweeping
sweeps
Choice D is the best answer. The convention being tested is subject-verb agreement. The singular verb "sweeps" agrees in number with the singular subject "she," which refers to Alice Coltrane.
Choice A is incorrect because the plural verb "sweep" doesn’t agree in number with the singular subject "she." Choice B is incorrect because the plural verb "are sweeping" doesn’t agree in number with the singular subject "she." Choice C is incorrect because the plural verb "were sweeping" doesn’t agree in number with the singular subject "she."