根据短文内容判断对错。
Alan: Mother, this is my friend, Bruce.
Bruce: Nice to meet you, Mrs. Green.
Mrs. Green: It's nice to meet you, Bruce.
Alan: And these are my grandparents, Charles and Nancy Green. That's my uncle, Dustin, and this is my sister, Emma.
Bruce: Hello! Hello! And is this your cousin?
Alan: Yes, this is Clark.