是an useful book还是a useful book 加a 或者an 主要看什么

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• 宾语从句 the book which/that I got a lot of useful information from was written by a famous scienti这句话 which/that 是做宾语还是主语?
• There is .in the .造句让造单数和复数（用There are)和不可数的,各3句,我主要是不知道不可数是There is后面的不可数,还是in the什么不可数.给我造出句啊我还想问我写There is a book in schoolbag.用不用加the？
• an useful book?要说清楚原因,到底是加a还是an,是因为book是辅音还是因为useful是辅音才加a?
• 英语完成句子的一些问题,定语从句类题目,1.We should do something to help those____(失去他们家园的人)in the terrible earthquake.(who)who lost their homes呃,我填的是people who lost theia homes,请问算不算是对的啊?2.I lost my pen,___(我用来写作业的)every day.( write)with which i wrote my homework 我写的是that i used for writing homework,还是想问是不是算对的?或者错在哪里..3.Whenyou read a book,you'd better make a mark ___(你有问题的地方)(where)where you have a question 请问在where前面加 on可不可以?4.Is there a cinema around___(能看电影)( see)wh
• 是an useful book还是a useful book 加a 或者an 主要看什么
• 急!not only...but also 与 both.and.都有不仅.而且.,在使用上有没了区别,或者都可以用,只是着重点不同?比如 This book is_______ useful________interesting.有人说 both...and 只用来连接名词代词,但字典上解释both and 可以连接名词,代词,形容词,动词等,如：字典上的例句有：He both fears and hates at once(他亦惧亦恨.） 那么应该也可以说He not only fears but also hates at once.个人认为,是不是both and 并列的两点在着重程度上是相同的,而not only ..but also.. 着重点在后者上?是这样吗?求权威回答,谢谢!
• His new book consisting of useful data has been well receive.请问下中文怎么译啊?The coach told him to bathe his eyes twice a day.本句中的"TOLD"是属于过去式还是属于过去分词啊?
• 是an useful book还是a useful book 加a 或者an 主要看什么
• 是a useful book,还是an useful book.为什么?不是所有元音开头的单词前面都加an吗?
• 是a useful book,还是an useful book.为什么?不是所有元音开头的单词前面都加an吗?
• ____the evening of May 31,the 2002 FIFA Worid Cup started in South Korea. A on B at C of D in
• 用英语表达地震来临之前我们应该怎么做要越多越好还要中文翻译的