1 I come from the USA／America
2 Her name is Mary .或She is Mary.
3 Is the girl from Japan? 或Does the girl come from Japan?
4 He is 15 years old and he is Russian .
5 This is my good friend, John .
6 We are both the students .
7 This is your picture／photo,here you are.
8 I need a new bag.
9 This is my teacher, Mr. Smith .
有其他说法的我也打出来了,希望被采纳.
记住给你是Here you are,不是give you ,give you 是中国式英语外国人是听不懂的!