The advantage of classifying idioms according to grammatical fun

The advantage of classifying idioms according to grammatical function is to（）.
A、use idioms correctly and appropriately
B、understand idioms correctly
C、remember idioms quickly
D、try a new method of classification
【正确答案】：A
【题目解析】：We prefer the criterion of “grammatical functions”. This is because such classification will be more helpful in the actual use of idioms. 我们倾向于“语法功能”的标准。这是因为此种分类在习语的实际使用中将更为有益。