根据对话内容,从下面方框中选出恰当的句子补全对话.
A: Hello, Bob! How is it going?
B: Hello, Kate! And you?
A: Very well. What's your plan for the summer?
B: I had a Chinese course last year, and I'd like to go on with it this summer.
A: How was the course
B: Yes. It seemed that way at first. But after a while it became easier.
A: You were the best in the class, right?
B: I did get an A. Well, could you tell me your summer plan
A: No, not this summer.
B: That sounds very interesting. Can I go with you?
A: Oh, here comes the bus! Goodbye!
B: Goodbye!
A. But I plan to go to Africa next summer.
B. Will you travel somewhere interesting?
C. Where do you come from?
D. Is Chinese very difficult?
E. I'm OK.
F. Travelling is very expensive.
G. No problem.