tolong jawab no 9-10 secepatnya pliss

9. a) He buys a new refrigerator, so I buy a new refrigerator / either him or me buy a new refrigerator.
    b) I didn't come to his party, so my neighbour didn't come too / either me or my neighbour didn't come to his party.

10. Tania has never been to this country before
       Have your ever talked to a tourist?

10. a) Tania has never been to this country before
b)Have your ever talked to a tourist?