[00:00.35]Lesson 21 [00:02.87]Which book? [00:05.43]Listen to the tape then answer this question. [00:11.53]Which book does the man want? [00:16.70]Give me a book please, Jane. [00:20.22]Which book? [00:21.83]This one? [00:24.33]No, not that one. The red one. [00:29.44]This one? [00:30.97]Yes, please. [00:32.78]Here you are. [00:34.81]Thank you.