根据首字母提示完成短文填空。

        I am studying at Sydney Russell School, a s____ but very famous school in Australia. All the lessons there are taught in English. I have f____ subjects this term. What a big challenge!

        Last w____, Mr. Brown, my science t____ asked us to do a project on trees. Ming and I were in the same group. B____ of us were from China. We spent several hours s____ the library every day, reading and surfing the Internet. We even planted two trees in the school garden and took many p____ of them.

        The most e____ part was the presentation. We introduced many things about trees, for example, the t____ and oldest tree in the school. Everyone enjoyed the presentation.

        Learning by doing helps me a lot. I'm sure everything will g____ better.

在△ABC中，已知∠ABC=45°，BD⊥AC于D，CD=2，AD=3，则BD的长为____ ．

若函数$y=\left(m-1\right)x^{m^2-2}$为反比例函数，则m的值为（　　）

红红火火（AABB）：____、____、____

水淋淋（ABB）：____、____、____