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,其中有两个为多余选项。

A: Hi, Mark. You look so sad.

B: l didn't pass the English test, Bert. I can't learn English well and I'm always worried about it.

A: I'm sorry to hear that.

B: I know you're good at English.

A: l study with a group. It's better than to study alone.

B: I agree.

A: Certainly. We can learn from each other.

B: Great! When can I join you?

A:

B: That's very kind of you.

A. What's wrong? B. What should I do? C. Tomorrow if you like. D. How do you study it? E. But don't worry about it. F. Could I join your study group? G. I listen to thy teacher in class.