A good website to practice four tones: http://www.ctcfl.ox.ac.uk/Tones/Tones.htm
ArchChinese’s Pinyin Table (You can learn pinyin including four tones)
https://www.youtube.com/user/sloppycheng#p/c/94A5E422FB99CDDD (for 1st and 2nd tone)
A good website to practice four tones: http://www.ctcfl.ox.ac.uk/Tones/Tones.htm
ArchChinese’s Pinyin Table (You can learn pinyin including four tones)
https://www.youtube.com/user/sloppycheng#p/c/94A5E422FB99CDDD (for 1st and 2nd tone)