Select the most appropriate option to improve the underlined segment in the given sentence. If there is no need to improve it, select No improvement.
Her dance teacher have come twice a week but there is no improvement in her dance.

Options

A. No improvement
B. will be coming
C. has been coming
D. were coming

Answer

C

Explanation

have come should be replaced with "has been coming" In the given sentence, the subject is singular, so the verb should be singular.