二、題組:
Interviewer: Today, I'm interviewing nine-year-old Alex about his feelings on   19  
people can help save the environment. So, Alex, how can we save the environment
Alex: We can save water.
Interviewer: Well, how can we do that?
Alex:   20   less water when we wash dishes, take a bath, and when we do other
things, like watering the plants outside.
Interviewer: Oh, I think I can do that. What else?
Alex: When drinking or eating something outside, you should keep the garbage until
you find a trash can to put it in because littering   21  ur planet dirty.
Do you want to see trash all over the ground?
Interviewer: No, I don't. Do you have any final suggestions?
Alex: Yes. We shouldn't waste paper because trees are cut down to make the paper. By
  22   paper, we save the forests   23  animals live in.
Interviewer: So, how can children recycle paper, I mean, every day?
Alex: Well, for example, when I was in kindergarten, I used to   24   the
newspapers so that I could make things out of them, like paper trees, instead of
just throwing them away.
Interviewer: That's great. Well, thanks Alex for your ideas.
*suggestion 建議 ；instead of 代替
【題組】19.
(A) how
(B) which
(C) that
(D) when