......Part A......

A: Hi, Tom! How's it going?
甲：嗨，汤姆！近来如何？
B: Great! Who's your friend?
乙：很好！你的朋友怎么称呼？
A: Oh! I'm sorry. This is Kay.
甲：噢！真抱歉。这位是凯。
B: Pleased to meet you, Kay.
乙：幸会，凯。
C: Nice to meet you.
丙：幸会。