Improve listening

One classmate asked me the other day about a particular app to improve his command of the English language. So I´ve made a sort of research on the most popular and  some of them are quite interesting.
Have a look at these webpages.

Apps for Android

For IOS
Apps for IOS

Hi guys!
Next day you´re going to be the teacher and explain us what collocations are.
First, watch the video and then look for several examples to illustrate your explanation.
When you teach you learn twice so I hope this activity is useful for you.