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answer is Yes, you can. Read my long post about IELTS here.

First time i got almost like your result:
listening 8, reading 6.5, writing 6.5 and speaking 7

Second time i got this:
listening 8, reading 8.5, writing 7 and speaking 7.5 - which is CLB9

And this is a tip how. It is long but take the advice, you couldn't go wrong by trying.

http://www.canadavisa.com/canada-immigration-discussion-board/ielts-preparation-t388867.0.html
 
Thank you AnnaBG!!

Great healp indeed with your post!
I just read the one about ielts.....perfect, practise makes the difference.
Listening in my case is the mos difficult one!!

Good luck again and thank you,