根据对话内容，选择适当的句子将对话补全完整。

A: Hi, Jenny! Do you know Mary?

B: Sure, she's my classmate and my good friend.

A: I met her in the park this morning.

B:

A: About 9:00.

B:

A: She was learning to ride a bike.

B: It can't be Mary.

A: Really? What were you doing at that time?

B:

A: Who's that girl? She looked like Mary.

B: She and Mary look the same.

A: I see. No wonder that she didn't say hello to me.

A. Where did she go? B. What time did you meet her? C. What does she look like? D. What was she doing then? E. She might be her younger sister Alice. F. From 8:00 to 10:00 I was with her. G. We were practicing the guitar in the club.