difficult单复数用法

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• 一道关于单复数的英语选择题you can recognize a tree by the __ of its__A shapes leaves B shape leaf Dshapes leaf
• All but one ____ here.答案是are,all 单独作主语谓语动词的单复数情况如何?All that glitters is not always gold.这儿就用了is 啊
• faced with放到句首的问题.____ with a difficult situation,Arnold decided to ask his boss for advice.A.To face B.Having facedC.FacedD.Facing上面这道题我在很多地方见过,但是答案都不一样,所以我想请教关于be faced with的用法.
• How many years was spent in building the tower?就是不理解为什么陈述句时就这样用,而问句就不这样用了?Two years was spent in building the tower.How many years were spent in building the tower?我是问谓语单复数的用法
• 德语alle和alles的用法alle和alles用法,有N,A,D,G四个格的用法吗?现在只知道alle做主语,动词用复数,alles做主语,谓语动词用单数,是所有的都这样吗?每次做题都是凭感觉做的,没有具体的分析啊,什么的~跪谢~
• 主要区分名词的单复数形式：1.The ( ) that half of the students dialike the course.A.statistic shows B.statistics shows
• 小学英语名词单复数一样的有哪些
• 1.They are cuter than any other animals.2.Jim is taller than any other boy in his class.1.They are cuter than any other animals.这是书上的.2.Jim is taller than any other boy in his class.这是我们老师讲的.any other的用法及其后加复数还是单数?求详解.
• It's always difficult being in a foreign country,especially if you don't know the culture of thecountry.请问being 什么成分,什么用法,我真不理解我在网上查了很多，没有it's difficult doing sth，只有 have difficult in doing sth,请问到底该怎么正确理解,有it's no use doing,no good doing等等
• what he'd like (is) a digital watch.what he'd like (is) textbooks.两个括号中为什么都填is,为什么与后面的单复数没关系,回答详细些,另外翻译一下.这个句型我第一回碰到，what是主语，那么he呢？like是喜欢还是想要的意思？
• 为什么要用排饱和食盐水法收集一瓶氯气?而不用排水法收集一瓶氯气?
• 请问地球的小g 就是g=9.8N/kg 这个数在圆周运动里是怎么得来的?我感觉应该是地球自转带来的Fc就是向心力 但是把地球的重量代进向心力公式 Fc=(m4π方r)/T方 得出来的不是9,8 这个有什么错么?