though lacking _ money .lack 和money之间加不加 of ,为什么

though lacking _ money .lack 和money之间加不加 of ,为什么 lack of,lacking of 请英语高手帮我区分下以下俩句话:I have a lack of money.和 I lack money. (lacking)[lack] money ,it remains to be seen whether we can lack of money中的lack的词性是? lack的用法请问a lack of、be lacking in和lack for用法上有什么区别? Lack of money,not of effort,_____________ our plan. Lack of money is the root of all I am lack of money.改同义句 .. haha i am ok,i am just lack of money 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 be lacking in 和 lack for区别