加热高锰酸钾，反应一段时间后，剩余固体成分可能有　____ 　种情况，选择一种情况设计实验，验证你的猜想．

找一找，变成新字。    

口    门    又    中     雨    市    令    钅

____

句型转换。
(1) Why don't you play basketball with us?(同义句)
____  ____  play basketball with us ?
(2) There is something wrong with my computer. (同义句)
My computer  ____  ____ .
(3) My friend will arrive in four hours.（对划线部分提问）
____ ____ will your friend arrive?
(4) Does he go to the cinema every weekend?(用next week改写)
____ he____ to the cinema next week?
(5) We will have a sports meeting next week. (改为否定句)
We ____ ____  a sports meeting next week.