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,

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, lack这个单词的用法 lack 的具体用法是什么 求couple的意思,用法, lack用法 lack,lack in,lack for 的用法区别,三个都是动词, lack的用法与搭配求详解 lack的用法请问a lack of、be lacking in和lack for用法上有什么区别? lack 的用法有没有 be lack of的用法?然后造个句, 求lack的几种用法,像lacking ,lack of,lacking of,lack等等都怎么用? couple后面的谓语是单数还是复数?以the couple / a couple of为例 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^^^ 【跪求】lack of 和 a lack of的用法,如题, be lacking sth 和be lack in sth的区别?例：Though ______ money,the poor couple managed to send their son to college .A lacking in B lacking这里省掉了从句的主语和系动词 he was. lack 的用法 可以和in搭配么? a couple的用法?后面必须加of吗? Be lack of 和 lack在一本书上看到lack作为动词和名词时的不同用法...它引用一个错误的例子是Many students are lack of independent learning skills because the education system spoon-feeds them.我想问问如果改成这样 The couple is playing还是The couple are playing?不清楚the couple的意思是单数还是负数