Hi Anastasia, here are a couple of thoughts:
1) Could you try doing the homework first, before asking for help? We will certainly help you if you show you are willing to try.
2) Please check your spelling. You used "c" in place of "e" so often that I thought my computer screen had a problem.
I'm very familiar with the grammar exercise, but it's up to you to take care with your writing and make an effort.