根据下面一段对话内容，从7个选项中选出能填入空白处的最佳选项，其中有两项为多余选项。

B: () I’m going to ask you a few questions. Then we are going to have a short conversation in English. Do you understand

A．You must have wronged me.

B．Oh! I’m so sorry about this.

C．Please stop just a second.

D．Are you Mr. Smith

E．But may I ask you something first

F．Is there anything I can do for you

G．Now, sit down please.