补全对话
从方框中所给的选项中选择正确的句子补全以下对话。
A: What book are you reading, Sally?
B:   
A: English is your favorite, right?
B: Yeah, it’s easy and interesting.     .
A: I don’t like it.        I like history very much because it makes us wise.
B: My history is not good.         .
A: Good idea.
B:     . Let’s go.
A: OK.

A.It’s a little difficult for me. B.What do you think of it? C.Oh, it’s time for class. D.I’m reading an English book. E.Can we help each other?