My vedio

B-slim
http://www.youtube.com/watch?v=LNO9SXKIa10

PPP
http://www.youtube.com/watch?v=rNUom7jxi-Q

cbi
http://www.youtube.com/watch?v=K2IQufR8VHE

listening

http://www.youtube.com/watch?v=AODWw2sLxLo

speaking

http://www.youtube.com/watch?v=IiuBgKfsWZQ

reading

http://www.youtube.com/watch?v=q76llgsrUwc

Writing

http://www.youtube.com/watch?v=PV86fCWxe6Q

coperative

http://www.youtube.com/watch?v=LVOhYOD1jhg

call

http://www.youtube.com/watch?v=987Q-2Jj6Ew