這里就牽涉到直接引語轉(zhuǎn)間接引語時,人稱的轉(zhuǎn)換問題.規(guī)律是：一隨主,二隨賓,三不變.
一隨主：直接引語中的第一人稱在間接引語中應(yīng)改成和主句的主語相一致的人稱.例如：
He asked,"Where can I put the books?"
----He asked where he could put the books.
二隨賓:直接引語中的第二人稱在間接引語中應(yīng)改成和主句的賓語相一致的人稱.例如：
"what's your name?" the teacher asked the boy.
----The teacher asked the boy what his name was.(his和主句中的賓語the boy相一致)
三不變：直接引語中的第三人稱在間接引語中保持不變.例如：
He says,"She is a worker."
----He says she is a worker.(she保持不變)
您的這道題原直接引語應(yīng)該是：
The policeman asked the man,"What are you doing near the school on such a dark night?"
按照“二隨賓”原則,自然應(yīng)該選b.