请详细说明理由(什么时候用nothing和none,说得通俗易懂一点）1.How many girl students are there in that class?____ .2.They wanted to buy some flowers to decorate the school gate ,but there were _____ left in the flower shop .两题

请说明详细理由 请详细说明理由(什么时候用nothing和none,说得通俗易懂一点）1.How many girl students are there in that class?____ .2.They wanted to buy some flowers to decorate the school gate ,but there were _____ left in the flower shop .两题 地球什么时候灭亡请说明理由 英语造句什么时候用is 什么时候用are 请详细点说明 我对这个人一无所知.I know nothing about this person可以 nothing know 为什么不行 请说明理由 可以用食盐水去除烧水的水壶里的水垢吗?请详细说明理由 乙醇能使溴水褪色吗?请详细说明理由 请详细说明理由!我一点也不懂! I《 》 a word and a letter请说明详细理由 要详细说明..理由 一句话,引号什么时候放在句号里面,什么时候放在句号外面?什么时候是 “ .”什么时候是 “ ”.请详细说明. family什么时候是可数名词,什么时候是不可数名词?请详细说明并举例 第十六届新概念作文大赛什么时候开始,什么时候结束?怎样投稿?请详细说明,谢谢. 请用详细公式说明. she said nothing,just looking( )at me and my brother.A,encitingB,excitedC,exciteD,excitedly到底用什么啊，请说明理由，谢谢哦~~ 用something , someone, nothing, nonesomebody填空 The light in the room is still on. There must be (用something , someone, nothing, nonesomebody填空The light in the room is still on. There must be ( ) in it.请说明理由 something anything everything nothing怎样区分使用请详细说明,有的时候我觉得用something却用了anything?这是为什么, I suppose that there is nothing in the bag,反意疑问句该怎么做,请给出详细理由!