* Ⅲ. 情景交际。
Gina: Hi, Mike. What subject do you like best?
Mike: History.
Gina:(31)____
Mike: Because it is very interesting. (32)____
Gina: Math and science.
Mike: Why do you like math?It's so difficult.
Gina:(33)____But I think it's interesting.
Mike:(34)____What do you know of yesterday's math exam, Gina?
Gina:(35)____You know I'm not good at math, but I tried my best.
Mike:(36)____
Gina: I'm not sure (37)____
Mike: What do you mean?
Gina: My parents will make me stay at home. (38)____
Mike:(39)____We can go to the zoo whenever you're free.
Gina:(40)____.
31.Choose the best answer________ ()