select the most appropriate word to fill in the blank. I ______ for forty minutes to see the doctor before my name was announced.

Options

A. i) have been waiting
B. ii) had been waiting
C. iii) were waiting
D. iv) am waiting

Explanation

In the past perfect continuous tense sentences, an action had started in the past and continued until another time in the past. Whereas, “H ad been + `V_("ing")` form” is the correct structure of a past perfect continuous tense. Similarly in this question, the narrator had been waiting for long before his name was announced. So, the action started in the past and continued in the past. Hence, “had been waiting(`V_("ing"))`” w ill be the most appropriate answer.