It is ture that ___ you get into the habit of smoking,you’ll find it extremely difficult to get out of it .A though B as
问题描述：
It is ture that ___ you get into the habit of smoking,you’ll find it extremely difficult to get out of it .A though B as C once D while
答
选C once整句话的意思是,一旦你开始吸烟,你将发现要戒掉是极其困难的.A though是尽管的意思,用于转折,不合语义B as 表示像.,当它表示当...的时候,一般只用于 As time went by,.这种类型的句子D while,表示伴随,两件...