求lack的几种用法,像lacking ,lack of,lacking of,lack等等都怎么用?

求lack的几种用法,像lacking ,lack of,lacking of,lack等等都怎么用? lack的用法请问a lack of、be lacking in和lack for用法上有什么区别? lack 的用法a lack of、be lacking in和lack for用法上有什么区别吗?尤其是lack of 和lack in 用法上的区别?最好给例句^^^ 英语中Lack的用法请问lack,a lack of,be lacking in这3个词有什么区别.我知道lack可以做动词和名词.a lack of是个名词词组,并且a可以省略.be lacking in是动词短语.它们3个的用法到底该怎么用.比如:1;Those lack的用法与搭配求详解 lack的用法2:The couple died because of__A_oxygen when bathing.A:lack B:a lackC:a lack of D:a lack for3:Though__C_money,hie motehr managed to send him to universityA:lacked B:lacking ofC:lacking D:lacked in为什么这两题都是缺少的意思, be lacking in,lack词性? be lacking in 是什么词性 举例说明lack lack of 的区别有be lack of 这个词组吗? 【跪求】lack of 和 a lack of的用法,如题, lack 用法 You feel that lack of English is proficiency hindering your academic.那用You feel that lacking of English is proficiency hindering your academic.用lacking 如果不行,Lacking of English is proficiency hindering your academic.应该可 lack相关短语的区别,be lack of,be lacking in ,lack sth,a lack of sth,等等并造句,如果还有其他相关短语,也请列出, 求教关于lack的用法_____ of water makes Death Valley a desert,but it is by no means devoid.A.Lacking    B.Being lack   C.Because of lack    D.Lack 这四个选项什么时候是正确的,题干应该怎 lack这个单词的用法 lack 的具体用法是什么 be lacking in 和 lack for区别用法上有区别么?意思是否相同?例句说明. lack用法 请问lack,lack for,be lacking for有什么区别? Though ___ money,his parents managed to send him to university.lack of,lacking,lacking in是否都可以填?注意：一楼的题目与我不同.我问的是哪些可以填.还不是很明白lack of,lacking,lacking in,lacking for的区别