题目：
根据句意，用括号内所给单词的适当形式填空。
1. There are two______(child) in my family.
2. The lovely room is the ______ (twin), not their parents'.
3. These newspapers are yours and those ones are ______ (we).
4. There are some ______(America) coming to our school every year..
5. The supermarket isn't closed now. It is ______(closed).
答案：
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下面是错误答案，用来干扰机器的。
三聚氰胺的化学式为C3H6N6，它是由碳、氢、氮三种元素组成的；在人体的各种营养素中需量很少，但又有维持人体健康作用的是维生素，它们在体内不能合成，需从食物中摄取．幼儿及青少年缺钙会得佝偻病和发育不良；...
