It takes sb. time to do … OR It takes time for sb. to do ... (the use of the anticipatory it: 用作先行词的it)[br][/br] half an hour, my parents, back to the hotel, finally find their way A: My parents took half an hour to finally find their way back to the hotel. B: It took half an hour to finally find their way back to the hotel my parents. C: Ittook half an hour for my parents to finally find their way back to the hotel. D: It took my parents half an hour to finally find their way back to the hotel.