1.I met Tam and Lan this morning 
2.Hi,I am Van and this is Hai
3.Good afternoon,my name is Hung and this is Phong
4.Hello Long, this is Nam and this is Hoa
5.How are you?I am fine,thanks
6.Good morning Miss Ha,my name is Phong and this is Phong
7.Good afternoon children,my name is Nguyen Van An.How are you?
8.Good afternoon teacher,we are fine,thanks
10.Hello Luong,this is my friend - Lan,she is and she is  a new student is my class