某班学生分三组分别做了二氧化碳制取和性质验证实验，如下图所示。

实验结束后，老师取两份等质量的丙废液，分别与甲、乙废液混合。将甲废液与丙废液倒入烧杯A中，有白色沉淀生成；将乙废液与丙废液倒入烧杯B中，有气泡产生。

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    Geoffrey Hampden has a large circle of friends and is very popular at parties. Everybody admires him for his fine sense of humour-everybody, that is, except his six-year-old daughter, Jenny.

    Recently, one of Geoffrey's closest friends asked him to make a speech at a wedding reception. This is the sort of thing that Geoffrey loves. He prepared the speech carefully and went to the party with Jenny. He had included a large number of funny stories in the speech and, of course, it was a great success. As soon as he had finished, Jenny told him she wanted to go home. Geoffrey was a little disappointed by this but he did as his daughter asked.

    On the way home, Geoffrey wondered what Jenny thought of his speech.

注意：

1）所续写短文的词数应为50左右；

2）至少使用3个短文中标有下划线的关键词语；

3）续写部分只有一段，开头语已为你写好；

4）续写完成后，请用下划线标出你所使用的关键词语。