根据短文内容和所给中文提示，写出空白处各单词的正确形式。每空限填一词。

    Jenny is an English girl. She is ____ (九) years old. Today is ____ (三月) 16th. It's her birthday. She wants to have a birthday ____（晚会）. It is ____ (在) seven this evening. But her uncle and aunt are____ (迟到的).She ____ (见面) five of her friends. They buy her a big birthday cake，two boxes of____ (牛奶), a basket of fruit, and ____ (一些) school things. Jenny wears a____ ( 绿色) sweater and brown trousers. She looks very nice. They all ____ (度过) a good time.

$2400\text{=}\{\begin{array}{c}10\times \left(\right)\\ \left(\right)\times 60\\ \left(\right)\times 80\end{array}$

如图所示为某兴趣小组的同学为学校办公楼空调设计的自动控制装置，R是热敏电阻，其阻值随温度变化关系如下表所示

已知继电器的线圈电阻R₀为10欧，左边电源电压U₁为6伏恒定不变。当继电器线圈中的电流大于或等于15毫安时，继电器的衔铁被吸合，右边的空调电路开始工作。

- ______ do you spell the word “box”? 

- B-O-X.