Найдите ошибки и объясните в чем они заключаются

1. I have lived in Moscow before I go to St. Petersburg. 2. He has lost the key of his house and now he has to climb through the window. 3. Shakespeare wrote a lot of plays. 4. I  haven't seen him for three years. I wonder where he is. 5. Have you closed the door before leaving the house? 6. I can't go out because I haven't finished my work yet. 7. I  did this sort of work when I was in the army. 8. He went out ten minutes ago. 9. Has the newspaper come? Yes, Ann is read­ing it. 10. Have you been here before? – Yes, I spent my holi­days here last year. – Did you have a good time? – No, it  never stopped raining.

1 works

2 I am writing

3 do you go to...

4 we don't dance

5 are they playing...

6 where does he live? he lives...

7 is he sleeping now?

8 read

9 are eating

10 helps

11 do you play...

12 is dancing now

1 is not watching, is sleeping because he is tired

2 where does your uncle work? he works...

3 is your friend doing...

4 when do you usually...? I come...

5 isn't playing, she plays

6 are you reading... and thinking

7 I m sitting

8 when do you listen

9 are you playing...

10 doesn't work

11 are moving, is appearing, it is getting

12 don't drink, drink

13 are doing, is washing

14 works