| A. Thank you. B. He's my good friend. C. Good morning, Sam. D. This is for you. E. What's this? |
A: Good morning, Bobby.
B: Come in, please（请进）. Mum, this is Sam.
C: Nice to meet you, Sam. Sit here, please.
A: Happy birthday, Bobby!
B: Thank you.
A: Open it and have a look（打开看一看）.
B: Oh, a nice toy! I like it.
