补全对话根据所给对话，填写适当的内容，使其完整正确(词数不限)。

A: Hi, Mike! How is it going?

B: ! Where are you going，Martin?

A: I'm going to Renmin Square. My friends invited me to go skateboarding there.

B: You can skateboard! ?

A: Last year. It's great fun. Would you like to join us?

B: 43.

But I can't skateboard.

A: . I can teach you. It's easy to learn.

B: Great! You are so kind. Well, by the way, have you finished your homework yet?

A: Yes. ?

B: Me, too.

A: Great! Let's go.