Studying Opioid Users as They Try to Stop

Posted by sjhong***, views: 7223,
    www.listen-and-write.com , level=9, 1:01 , on 2019/07/31

Ebola Vaccine Use in Congo Slowed by Distrust

Posted by sjhong***, views: 7717,
    www.listen-and-write.com , level=10, 1:08 , on 2019/07/31

IR 4 unit 2 text 2

Posted by 212158***, views: 10654,
    www.youtube.com , level=14, 6:32 , on 2019/07/31

A suspicious neighbor

Posted by karina***, views: 10160,
    www.listen-and-write.com , level=17, 1:13 , on 2019/07/31

An economic bubble (IR level 4 unit 6 text 1)

Posted by 212158***, views: 10336,
    www.youtube.com , level=13, 8:08 , on 2019/07/29

The benefits of immunization

Posted by 212158***, views: 9746,
    www.youtube.com , level=13, 7:44 , on 2019/07/29

Pieces of a Puzzle: The Evidence for Pangaea.

Posted by 212158***, views: 9896,
    www.youtube.com , level=13, 6:50 , on 2019/07/28

ostrich farming

Posted by 212158***, views: 10198,
    www.youtube.com , level=14, 4:49 , on 2019/07/26

the environment

Posted by 212158***, views: 9645,
    www.youtube.com , level=12, 2:03 , on 2019/07/26

north american women's attitudes toward money and saving

Posted by 212158***, views: 9607,
    www.youtube.com , level=15, 4:39 , on 2019/07/26