一个做自由落体运动的物体，其落地速度为20m/s，重力加速度g取10m/s²，则该物体（   ）

小青要写56个生字，已经写了24个，还要写几个？

函数f（x）=$\sqrt{2x-1}+lg\left(1-x\right)$的定义域为（　　）

台湾省的城市、人口主要分布在____，其主要原因是____ 。

    My name is Lily. I'm from London. This is my mother. She is an English teacher. She is good at cooking and she is nice. This is my father. He is thin(瘦的)and short. He is clever. I love them. Oh, this is my house. Is it beautiful? The famous Thames(泰晤士河) is close to my house. It is long. There are a lot of ships on the river(河). I like watching the ships.