用词，短语或句子补全对话。

(Wang Tao and Li Ming are going to play basketball.  They want to invite Lin Hai, but...)

A: We are going to play basketball.  1. ___________ ?

B: Yes, I'd like to.  But I can't.

A:2. ___________.

B: I have to see Xiao Fang in the hospital.

A: 3. ___________?

B: She has a stomachache and she doesn't want to eat anything.

A: 4. ___________.  Does she often eat junk food?

B: Yes, she often eats junk food.  It's bad for her 5. ___________

A: That's right.  Let's go to see her together, shall we?

B: OK.Let's go.

结晶带色的原因及处理方法？