試題詳解

24. Mike: Do you think we can completely eliminate plastic waste?
Tom: ____________ I believe we can become plastic-free, but finding effective alternatives to cope with plastic waste is challenging.
Mike: Perhaps we can begin with food and drink industries and encourage them to adopt eco-friendly cups.
Tom: That could be a positive step forward.
(A) That’s such a huge topic.
(B) We’ve gotten so far off topic.
(C) Let’s shift the topic of conversation.
(D) That’s the topic we should stop discussion.