求教一个英语句子的对错Exercise can happen any time you have a free 30 minutes.这句话对吗?我认为应该把“a”去掉

求教一个英语句子的对错Exercise can happen any time you have a free 30 minutes.这句话对吗?我认为应该把“a”去掉 判断句子的对错 求教各选项对错的原因 判断这些句子的对错这句话用英语怎么说 判断英语句子语法有无对错的软件 请教一个英语句子的对错 Maybe this is the reason that why lov请教一个英语句子的对错Maybe this is the reason that why love is beautiful.或许这就是爱之所以美丽的原因. Do your classmates often do eye -----(exercise)?exercise 加不加s?英语报上说exercise在作“操”时是可数的啊.老师说报纸错了,风唱梵音求教 初三英语转换句子题Exercise A is easier than Exercise B-> Exercise A is _____ _____ than Exercise B 地震 常识 英语关于地震的20个常识的对错判断,要英语句子.急! 判断英语句子的对错英语有点废了Dave has to do his homewok 句子中啊的变调.求教求教、 一个英语的改写句子例句:Exercise is good for your health （改为同义句）要这样It____ _____ _____ your health _____ _____ 5个空 exercise的音标英语音标 Isthishiswatch?Yes,it's.标题的英语句子对错?原因?(答的详细简便) 新概念英语第二册Lesson3习题答案P22页的Exercise练习改写句子 眼保健操的英语表达eye exercise exercise加不加s 请教一个英语句子的对错 When we are in love,we won't survive请教一个英语句子的对错When we are in love,we won't survive merely for ourselves.当我们被爱包围,我们就不再只为自己而活. 怎么判断一句英文的对错这里不是说内容的对错,而是句子的结构、语法等的对错.请问怎么判断一个英文句子是对还是错?