The doctor had examined him.a)He had been examined by the doctor.b)He ...
The original sentence is in the past perfect tense, indicating an action that happened before another action in the past. The subject "him" is the object of the examination. We need to rewrite the sentence using the passive voice. Let's analyze the options:
A:
He had been examined by the doctor.
This option correctly uses the past perfect tense and the passive voice. It conveys the meaning that the doctor performed the examination before a certain point in the past.
B:
He was examined by the doctor.
This option uses the simple past tense, which is not consistent with the original sentence's past perfect tense. It suggests that the examination happened at a specific point in the past but does not indicate a relationship with another past action.
C:
He has been examined by the doctor.
This option uses the present perfect tense, which is not appropriate for expressing an action that happened before another action in the past. It suggests that the examination happened at an unspecified time before the present.
D:
None of these
This option is incorrect because option A is the correct answer.
Therefore, the correct answer is option A:
He had been examined by the doctor.