Fill in the blank with the most appropriate word.
Someone saw him. He was driving a Renault Manager. He ________ a Renault Manager.
An action in a sentence can be represented in two ways, namely active and passive voice.
The passive voice always uses the past participle form of the main verb irrespective of any tense. Only the auxiliary verbs depend upon the sentence given in active voice.
The correct answer is B)was seen driving
The option B is correct as the given sentence is in active voice and to transform it into passive voice the subject of the given sentence
(someone) comes in the place of the object(him- somebody is ignored here) and vice versa. Also, as the sentence is in the past continuous tense, 'seen' is added after the helping verb 'was' and before driving.
Options A, C, and D are wrong as saw, is, and has been cannot be used here respectively.