Question Detail
Someone has stolen his book.
- His book is been stolen.
- His book has been stolen.
- His book is stolen.
- His book has stolen.
Answer: Option B
Explanation:
Apart from Rule to make active voice of Present Perfect Tense, which is
Passive subject + has/have + been + third form of verb + by + passive object
Please also note that words like, "someone", "somebody", "people", "police", "public" etc are dropped. But in rare cases we can use them if sentence meaning is not clear.