You can also have a look at the grammar book (Intermediate Language Practice) for further practice. We've alredy checked unit 2, so do unit 3 for next Thursday 3rd November and I'll solve any doubts you can come across.
Do also the two exercises on top of this worksheet. We'll correct them in class.
There are extra online activities on these sites:
The Grammar Aquarium
And you can listen to the song by Lenny Kravitz and download the worksheet.