补全下面的短文。
In my dream,I travelled____spaceship.I could see lots of____from the window.They were bright and big.I didn't have to____in the ship because I could fly in it.It was fun! I____call my parents in the sky.I told them I was ____in space.
按要求写句子。
①布斯很快就研制出世界上第一台吸尘器。
改“被”字句:
改“把”字句:
②你为什么不反过来试试呢?(改成陈述句)
如图是某几何体的三视图,其侧面积( )
三国时,赤壁之战后,魏、蜀、吴终成三足鼎立之势,根据自己的认识,蜀国主要的根据地是( )
植物体内所有的细胞都具有分裂能力。