пишу только те места где надо исправить (они в скобках ) :
1. ... why he (wanted )to leave that place.
2... asked the girl (not to cry ).
3. ... to get (her) ball.
4.How long (have they known) the doctor?
5. ...asked the girl (if she liked) the hat.
6. ...to have the magic carpe (the following day ).
7. where (she had lived) before.
8. .... to see her grandmother (the following day ).
9. (They )were very little.
10. You (should ) eat less hamburgers.