1.还是born
2.safen
3.greeting
改错：
1.His seat was beside Tom in the middle of the classroom.
2.People celebrate the holiday in different ways,for China is a big country.
3.At that time everyone had to go back to their hometown that(which) they counted.当时每个人不得不回到他们视为家乡的地方.
4.I'm sorry for keeping you waiting so long.