I am Russian schoolboy,us asked exercise!Past Simple or Present Perfect?

1.Maria (get) _______ some bad news last week. She (be) _____ sad since she (get) _____ the bad news. 2. I (start) _____ school when I was five years old.
I (be) ____ at school since. I (be) ______ five years old. 3. I (Change) _____ my job three times this year. 4. I (Change) ______ my job three times last year. 5. The weather was hot and dry for many weeks. But Two days ago it (rain) ______. 6. Tom (break) ______ his leg five days ago. He's in hospital. He (be) _______ in hospital since he (break) ________ his leg. 7. Are you ging to finish your work before you g to bed? - I (finish) ______ it (already). I finish _____ my work two hours ago.