某种商品的进价为800元，出售时标价为1200元，后来由于该商品积压，商店准备打折销售，但要保证利润率不低于5%，则至多可打( )折
7
根据句义及首字母提示完成单词：
1. Have you ever been to an a _____ park?
2. —I have never been to the space museum.
— N _____ have I.
3. I want to u _____ English language movies.
4. Why do you want to I _____ your English?
5. I started to t _____ lessons in a language school.
柳树实验最后证实什么元素是最重要的（）
A、风
B、土
C、火
D、水
