a few 可以换成some

a few 可以换成some s____(some ,a few) some和a few是同义词吗?可以互换吗? few,a few ,some ,many的用法 外语:a few some question some. a few用来解释什么? several是不是等于a few和some some 和 a few的联系 sometime sometimes some time some times little a little few a little a few little few哪个可以加形容词 few a few little a little哪些可以用疑问句? 用few/a few/several/little/a little/a bit of/some/any完成下列句子