关于most的一道选择!he has many nicknames,but ___ most frequently us

1.根据前后句子的意思.
he has many nicknames,
他有很多昵称
而强调了"copper"and"bobby".
当然要用最高级了.
表示用得最广泛的是"copper"and"bobby".
2.the most不一定只修饰一个
如果2个东西一样都是最的,那就可以是2个
同样,3个4个也可以.
比如.这里有很多可爱的人,但他们3个是最可爱的.
many people here are lovely,but mary lili and lucy are the most lovely .
3.frequently used for 做主语的定语,补充成定语从句为：
he has many nicknames,but the most nicknames (which are frequently used for) are "copper"and"bobby".

used是指被用的
2可以，可以是N个里面MOST的2个
3被用做。。。。。。就用FOR

he has many nicknames, but the most frequently used for are "copper"and"bobby".
其实the most 后省略了名词nicknames，自然要强调最高级；
frequently used for 做主语的定语，补充成定语从句为：
he has many nicknames, but the mo...