我要答案及理由,特别是理由!1.She said that her mother ___ for three years.A.has been dead B.has died C.had been dead D.had died2.It ___ last night,for the ground is covered with snow.A.must snow B.must be snow C.must have snowed D.can snow

我要答案及理由,特别是理由!1.She said that her mother ___ for three years.A.has been dead B.has died C.had been dead D.had died2.It ___ last night,for the ground is covered with snow.A.must snow B.must be snow C.must have snowed D.can snow 答案及理由,谢谢 第七题答案及理由 第四题答案及理由 第十题答案及和理由. 第十七题的答案及理由谢谢 我喜欢的诗歌及推荐理由(现代诗)及推荐理由(理由20字) 第八题,我知道答案,我想知道解题得过程及理由, She likes_____(swim) very much.要理由 摘抄两小段关于“雨”的美文片段及理由.1.美文越短越好,理由一点就好.2.要两小段美文及此文理由. 请问这2道英语题的答案及理由 核酸的基本组成单位确切答案及理由 Miss Green didn't tell us ____ before she came to our school.where she livedwhere she had lived答案是后一个,我要一个说得过去的理由,不是翻译 要详细的数学算式及理由. 要详细的数学算式及理由 要详细的数学算式及理由 名著推荐及理由 求过程及理由!