补全对话
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?

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.