根据对话内容，从方框中选择恰当的选项补全对话。

A：Hey, Sally! Do you know?

B：Yes．of course．It started to rain at 6：30．

A：

B：I was practicing the piano．What about you?

A：

B：Did you stop exercising then?

A：Yes．Then I rode my bike home．On the way I…

B：

A：My bike hit a tree．

B：Oh，my dear!

A：No．I didn't．

B：Thank goodness!

A．I was exercising in the park． B．When did it start to rain this morning? C．Did you hurt yourself? D．Did you see the doctor? E．What were you doing at that time? F．What happened to you on the way? G．Why not sell your bike?