Use the past simple  of present perfect tense
10. jane isn't at home (to go) stopping.
11. look ! there's an ambulance over there.  there (to be) an accident.
12. shakespeare (to write) many plays.
13. my friend is a writer. he (to write) many books.
14. i (no learn) french at school, but i( to forget ) most of it
15. i (not to read) a newspaper yesterday
16. i (not to read) a newspaper today.
17. they (to leave) england when he (to be) still a child.
18. i (not to see) him since he (to leave) for london 
19. we (to travel) around europe last year.
20. the rain (to stop). let's go for a walk