Помогите пожалуйста! Срочно.: 
Some of these sentenses have mistakes.
Find the sentenses and correct mistakes:

1) This may be the happiest day of my life
2) Maybe it would be better to have your party on Saturday than of Friday.
3) Maybe I'll call you when i get back home.
4) I may be yong, but i'm not stupid
5) They maybe policemen or officers - look at their uniforms.
6) Such weather maybe too hot for late April.
7) Maybe Jane will come to stay with us in August
8) Ours maybe the biggest house in the street
9) Maybe be I'll be a lawyer or an econimist . I haven't decided yet.
10) This look may be a novel or a crime story ,I haven't seen it yet

1. not on (than of)4. young 5. might be (maybe)6. is (missing)8. Our house or ours is 10. (this look may - this what?) this looks like/ this might be