Помогите с английский!!

Напишите правильно, что в скобках!! Срочно!!

fill in the blank with past participle form of the verb in parenthesis

1) MArio has (be) here for an hour
2) Since I last saw George, he has (become) president of the U.S
3) It's after 10:00. Has the class( begin)?
4) The mosquitoes have really (Bite) out all the candles on her cake
5) Grandma hasn't (Blow) out all the candles on her cake
6.) Oh no! I've ( break) my pencil
7.) Has everyone (Bring) a book to class?
8) They haven't (Build) any new hotels on the beach this year
9) I've already (buy) three new blouses, but I need a skirt or two
10) I'm afraid I've (catch) a cold