The oils in fish such as salmon are very good for you.fish 为什么是用are我印象中这种不可数名词 food candy 什么的应该是用is,为什么这里用are

The oils in fish such as salmon are very good for you.fish 为什么是用are我印象中这种不可数名词 food candy 什么的应该是用is,为什么这里用are
The oils in fish such as salmon are very good for you.fish 为什么是用are
我印象中这种不可数名词 food candy 什么的应该是用is,为什么这里用are

The oils in fish such as salmon are very good for you.fish 为什么是用are我印象中这种不可数名词 food candy 什么的应该是用is,为什么这里用are
这里不是fish做主语,是oils做主语.这是复数形式,所以谓语动词用复数形式are

这里的主语是oils，
in fish是做状语的

主语是oils,所以用are,in fish 是个短语，不是主语~~

这的主语不是fish 是oils