根据对话内容，从方框内的A、B、C、D、E五个选项中，选出能填入空白处的正确选项，使对话完整。

A. Bye. B. What time is it? C. What's the weather like in Beijing? D. Is it cold? E. It's time for dinner.

Mark: Hi, Chen Jie! This is Mark.

Chen Jie: Hi, Mark!

Mark: It's rainy. How about DaLian?

Chen Jie: No, it isn't.

Mark: It's 7 o'clock.

Chen Jie: OK. Goodbye.

Mark: