1) It doesn't you long to do the exercise. It is very short.
2) Yesterday it took the tourists two hours to see the city centre.
3) I'm sorry I'm late. It took me a lot of time to find your house.
4) Usually it doesn't take them long to decide what to do at the weekend.
5) Why does it take you so long to do the work? All the others have already finished.
6) It took my friend a year to learn some Spanish. It was his second foreign language.
7) How long did it take them to prepare this wonderful concert? I'm really enjoying myself.
8) It doesn't take Europeans long to kill all the dodos on the island of Mauritius.
9) I don't think I'll go to the cinema with you. It takes me all afternoon to clean and tidy my room and I feel tired.