Comparing the L Sound and R Sound

After watching this video, maybe you would like to practice with these videos by Charles Kelly.
Listen & Repeat: 145 Words with “L”
Listen & Repeat: 68 Words with “R” /r/
Listen & Repeat: 62 Words with “R” /ɝː/ /ər/
Listen & Repeat: 33 Words with “R” /ɔːr/

Transcript: http://www.rachelsenglish.com/r_l_comparison