根据对话情景和内容，从对话后所给的选项中选出能填入空白处的最佳选项，并在答题卡上将该选项涂黑
After getting a good grade on her history essay, Ellen talks to Shirley after class one day.
Ellen: Shirley, can I talk to you for a minute?
Shirley:    I have to rush to my next class.
Ellen:    It’s about my history essay.
Shirley: Oh, that. I hope you aren’t still having trouble with it.     
Ellen: No, no! I handed it in on time and the professor just returned it to me. Thanks to you, I got a B+. That’s the best grade I’ve had on an essay this year!
Shirley:     I’m glad you’re happy about it.
Ellen: I am, Shirley. And to express my thanks, I’d like to give you something. Here.
Shirley:     

A．What a beautiful pen! Thank you!

B．Sure, if it’s only a minute.

C．It was due a while ago.

D．History has always been your headache.

E. Congratulations!
F. You don’t need to thank me for that.
G. This won’t take long.