Giúp mk giải 3 câu này với

`1.` Ms. Fortune, whose body was found in the cellar, was a writer.

`2.` I met an old friend who told me all about a book he'd just read.

`3.` We ask about the athletes of whom we are looking at the pictures.

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Danh từ xác định dùng ","

whose ( sở hữu ) N +whose +N

who( chỉ ai đó ) +V

whom (chỉ ai đó ở tân ngữ) + S+ V