When you want to introduce yourself to an american,you can just try a _____,such as "Hello,my name is ..."

问题描述:

When you want to introduce yourself to an american,you can just try a _____,such as "Hello,my name is ..."
A.commonly used greeting
B.used commonly greering
C.commonly using greeting
D.using commonly greeting
为什么选A呢?

greeting 是名词,肯定放在最后这个不用说吧
就是看前面两个修饰的定语,谁先谁后了.
used 看句子成分,used 是修饰greeting的
而commonly 则是修饰 used greeting的