00:10duration 10 seconds
Chapter 10 Lesson 3 Exercise 1
00:07duration 7 seconds
Chapter 10 Lesson 3 Exercise 4
04:38duration 4 minutes 38 seconds
Chapter 10 Lesson 3 Exercise 11
00:08duration 8 seconds
Chapter 10 Lesson 3 Exercise 12
00:15duration 15 seconds
Chapter 10 Lesson 2 Exercise 1
01:06duration 1 minute 6 seconds
Chapter 10 Lesson 2 Exercise 3
00:38duration 38 seconds
Chapter 10 Lesson 2 Exercise 9
00:44duration 44 seconds
Chapter 9 Lesson 1 Exercise 2
00:37duration 37 seconds
Chapter 9 Lesson 1 Exercise 5
00:09duration 9 seconds
Chapter 9 Lesson 1 Exercise 6
00:14duration 14 seconds
Chapter 8 Lesson 3 Exercise 1
00:33duration 33 seconds
Chapter 8 Lesson 3 Exercise 4
00:11duration 11 seconds
Chapter 8 Lesson 3 Exercise 6
00:23duration 23 seconds
Chapter 8 Lesson 2 Exercise 5
00:24duration 24 seconds
Chapter 8 Lesson 2 Exercise 6
00:12duration 12 seconds
Chapter 8 Lesson 2 Exercise 7
00:34duration 34 seconds
Chapter 8 Lesson 2 Exercise 17
00:22duration 22 seconds
Chapter 8 Lesson 1 Exercise 1
00:43duration 43 seconds
Chapter 8 Lesson 1 Exercise 2
00:51duration 51 seconds
Chapter 8 Lesson 1 Exercise 11
Chapter 7 Lesson 3 Exercise 1
00:18duration 18 seconds
Chapter 7 Lesson 3 Exercise 2
00:29duration 29 seconds
Chapter 7 Lesson 3 Exercise 3
00:58duration 58 seconds
Chapter 7 Lesson 3 Exercise 14
00:41duration 41 seconds
Chapter 7 Lesson 3 Exercise 16