Correct Answer:
Option C - The correct passive structure of the sentence is - ‘‘Wolves have been seen in the streets’’.
In passive voice, Present Perfect Tense is changed with helping verb 'been'.
Hence, option (c) is correct.
C. The correct passive structure of the sentence is - ‘‘Wolves have been seen in the streets’’.
In passive voice, Present Perfect Tense is changed with helping verb 'been'.
Hence, option (c) is correct.