1. 连词成句，将对话补充完整。
Lily: Look! (1)
.
(glass bottle, this vase, made, old, with, an, I)
Tom: How beautiful! But I always throw old things away.
Lily: (2)
?
(Why not, some old things, next time, try to, recycle)
Tom: Can we reuse these old buttons?
Lily: Yes! (3)
.
(old buttons, flowers, old, made, these, with, I)
Tom: How wonderful! (4)
?
(make, with, What, we, can, plastic bottles, these)
Lily: How about a rocket? We can use these cards too.
Tom: How clever!
解析：
本题考查连词成句，需要结合对话的上下文语境，按照小学阶段所学的英语基本句子语序，将给出的词汇合理排序，注意句首单词首字母大写、句末标点符合句式要求：
1. 第1句是陈述句，主语是I，谓语是made，宾语是this vase，方式状语是with an old glass bottle，符合语境逻辑。
2. 第2句是Why not引导的提建议的疑问句，Why not后接动词原形try to，再接动作内容recycle some old things，最后加时间状语next time，符合对话里给对方提建议的语境。
3. 第3句是陈述句，主语是I，谓语是made，宾语是these flowers，方式状语是with old buttons，对应前文讨论旧纽扣再利用的内容。
4. 第4句是What引导的特殊疑问句，疑问词What开头，后接情态动词can，再接主语we和谓语动词make，最后加方式状语with these plastic bottles，对应后文回答用塑料瓶做火箭的内容。
