填入适当的词，补全对话，每空一词。
A: 1_______ that?
B: That's Sam.
A: 2_______ you know him?
B: Yes, he's my good friend.
A: Why 3_______ you like him? 4_______ looks so strange.
B: 5_______ he's funny. He can always make me laugh.
A: 6_______ is he 7_______?
B: He's more outgoing and friendly 8_______ others.
A: But I don't like a boy 9_______ such long hair.
B: I don't care. I don’t think appearances (外貌) are 10_______ in a friendship.
