Global Warming

What do you think about global warming?

Click on the link to watch the video, then make a comment about it and write 2 advices on how to stop global warming.

 http://www.youtube.com/watch?v=xlkprv-Upco

Prepositions

Check this video out and make a comment about it.

http://www.youtube.com/watch?v=2UXmsAE5D7E