formal and informal english

4:08

21:53

12:10

11:03

15:08

18:34

12:27

8:28

12:22

4:00

27:28

6:47

00:44

10:28

00:31

8:12

8:38

11:50

00:24

11:24

4:26

5:45

00:29

7:47

11:26

2:26

25:08

10:48

00:11

10:13

1:01:56

00:06

13:31

25:35

1:36:08

3:46

00:49

16:15

5:35

8:37

2:42

10:32

2:18

00:28

15:16

9:51

6:40

23:41

4:44

17:34

00:44

00:43

00:29

6:02

5:54

6:38

3:17

3:01

1:35

00:24