How many people attended the exhibit?- I’m not sure __________ 100 people

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（ ）“蚕丛及鱼凫，开国何茫然”。李白对古蜀国起源的描绘，引得历朝历代专家、学者不懈地探究考证。____________________①这个谜团一直环绕着这片天空。②凝视三星堆那尊青铜铸像，蚕丛那大大的耳朵，抿着的嘴巴，鼓鼓的突出的眼睛，自信的神情闪烁出几千年前的光焰。③据《明一统志》记载，瞿上城在（双流）县东18里，蚕丛氏所都。④刘琳教授在他撰写的《华阳国志》注释中认为：瞿上城在今新津县与双流县交界的牧马山蚕丛祠九倒拐一带。⑤《华阳国志》载：“周失纲纪，蜀先称王。有蜀侯蚕丛，其目纵，始称王……后有王曰杜宇，教人务农，一号杜主。时朱提有梁氏女利，游江源，宇悦之，纳以为妃。移自郫邑，或治瞿上。” ⑥是谁开启的天府之国哪里是古蜀农耕文化之源

The price of the white bike is two_____ and forty yuan.

Tom ____his homework yesterday, because hewas in hospital all day.

You must be careful when you swim the lake.