补全对话（共5小题；每小题1分，满分5分）
根据对话内容，从方框内的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。
A: Good morning, Miss Smith.
B: Hi, Sandy. Where have you been?
A: _____
B: Really? That’s great! Did you talk with Mark and Judy?
A: Yes, but only a few words. And I’m not sure if they could understand me.
B: No problem. _____
A: But I’m afraid of making mistakes when I speak.
B: _____ You should believe yourself.
A: But do you think they like to talk with us beginners?
B: Yes, unless they’re busy.
A: Well, I’m still not so confident. You know my pronunciation is poor.
B: ___Try to talk with them as much as you can.
A: All right. ____

A. Thanks a lot, Miss Green. B. I’ve just been to the English corner. C. That’s a bad excuse. D. You have made a good start. E. No, I’m not. F. We all learn from mistakes, don’t we? G. Can I help you?