There (was) some interesting news in yesterday's newspaper.请问为什么不能用were?

there was some ink in the bottle 对some提问 There was some water in the bottle 改为一般疑问句 there was some orange in the cup(变一般疑问句) there was some water on the floor,so he s____. there was some water on the floor,so he s____. there was (some,many,plenty) water in the bottle.. There () some () last night.It was wet everywhere. There was some mike in the cup变为否定句 there was a river nearby,什么some tall tree around There was some hamburgers in the fridge 划线提问 some hamburgers 是划线的 There was some corn in the pocket?（画线部分提问,some corn) In the past there was no s____ school here.But now there are some. was and there were a there harbour ferries some连词成句 There was some frictions between them.如果frictions正确，was如何解释？ It was not cold yesterday.And there was some wind的同义句 there was It was Children's Day yesterday.We w______to the park.Our teacher wasw______us.T_______were many people there.Some Young Pioneers w______near the river.T______sang and danced.There were some boats in the r_____.There was hill n______the river.Some bo have you got some water to drink?here you are .there __still some in the bottle.为什么填was