根据下面情景补全对话,在每个标有题号的空白处填入适当的句子,使对话完整 A: Good morning, Sam. B: Good morning, Lucy. ___1____? A: I ’ m fine. Let me introduce my friend, Tom to you. ____2___. B: Nice to meet you, Sam. A: ___3____. B: Where will you go? A: ____4___.It is his birthday. B: Really? Happy birthday! A: Thank you.__5____? B: Yes, I ’ d love to. A: OK. Let ’ s go. A.Would you like to join us? B. How are you doing? C.This is my classmate, Sam. D.Nice to meet you, Tom. E.We will go to Tom ’ s home.