During these exercises you will find out if you need some extra practice or if you can move on to the more difficult exercises. Do all three listening exercises. If you scored a sufficient on all three listening exercises, move on to the paragraph called 'more difficult exercises'.
If you didn't score a sufficient, or if you think you need more practice, move on to the paragraph called 'extra practice'.
There is also a link to a Youtube video which gives you some tips to improve your listening!