英语简单语法问题,在线等!我看往年考生优秀作文中,有这么一句：on the contrary,in 1995 there was only one fish swimming freely but many fishing-boats sailing in the sea.为什么swimming和sailing都加了ing啊,而且前面都没有be动词呢,这是什么语法呢
问题描述：
英语简单语法问题,在线等!
我看往年考生优秀作文中,有这么一句：
on the contrary,in 1995 there was only one fish swimming freely but many fishing-boats sailing in the sea.
为什么swimming和sailing都加了ing啊,而且前面都没有be动词呢,这是什么语法呢
答