同一句转换帮我把每一个句子写一个同一句出来!1.Water came from the sea in the first

同一句转换
帮我把每一个句子写一个同一句出来!
1.Water came from the sea in the first place.
2.Remember not to waste or pollute me
3.When he felt the gun against his back,he froze.
4.There is no much water in the pool.
5.There are a few swimmers in the pool.
6.People in that area don’t have food.They don’t have clothes,either.
7.It was polite of him to give his seat to an old man.
8.It is necessary for us to put on the picture now.
9.Johnson is in charge of announcing the news to the public.