10．
选择恰当选项补全对话。
|
A. Whose is it?
B. Of course.
C. Yes, it's mine.
D. Is this yours?
E. What are you going to do?
|
A:
B: I'm going to play football in the park.
A: Can I go with you?
B:
（They are in the park）
A: Sam, look! There is a pen.
B:
A: Let's ask the boy in blue.
B: OK.
A: Excuse me.
B: . Thank you very much.
