【急】送分送分!帮我找下此文中的9处错误...今晚解决

Mark Twin was a(an) American writer.One day he went to a city by
train,he wants(wanted) to see one of his friend(friends),he was busy and often
forgot something.When he was on the train ,the conductor asked
him his ticket.Mark Twin look(looked) for his ticket.But he could not
fine(find) one(it).The conductor knew him and said,“Show me his (your)ticket
on your way back .If you can (can't)find it ,it doesn't matter.”
“Oh ,but it does.”Said Mark Twin,“I must to (no to)find it .If I
can't ,how can I know what(where) I'm going.”

1.a-an
2.wants-wanted
3.正确
4.look-looked
5.one-it his-your
6.正确
7.去掉to
8.what-where

1.a American writer--an American writer
2.wants--wanted
3.friend--friends
4.asked him his ticket----asked him for his ticket
5.look--looked
6.one--it
7.Show me his ticket ,his---your
8.can---can't
9.I must to find ---去掉to
10.what---where

an American
he wanted to see
one of his friends
forgot things
Mark Twin looked for
could not find one
Show me your ticket
i must find it
I know where I'm going