be动词要用复数的形式，一般现在时，用are，一般过去时，were
因为a few表示几个，修饰可数名词复数形式
There are a few people playing sports in the park.
公园里有几个人在做运动。
There were a few children playing soccer on the playground yesterday.
昨天操场上有几个孩子在踢足球。
a few 前面的be动词
动词be用复数are，因为a few后接可数名词复数，中文意思是，一些几个
There are a few ideas around on how to treat fillies and mares in season.
关于如何对待发情期的小母马和母马有几种观点。
There are a few things you should check before pressing the shutter release.
在按快门之前，有几件事情你应该检查。