Fill in the blank with the most appropriate word.
A patient _________ by a doctor.
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 D) is examined as 'by' indicate that the given sentence is in the passive voice.
Options A, B, and C are not correct as the sentence is in the passive voice and 'examined', 'is examining', 'will examine' can only be used in the active voice depending upon the tense of the sentence given in the active voice.
A patient is examined by a doctor.