his latest book,Animal Liberation,sparked a nationwide debate .中为什么是sparked 而不是sparking
网友回答
如果是sparking,这个句子就没有谓语动词了
这里sparked做谓语动词
======以下答案可供参考======
供参考答案1:
sparked 是谓语，
his latest book sparked a nationwide debate
Animal Liberation 书名，插入语
要用ing形式没谓语了
供参考答案2:
sparked 是谓语，
his latest book sparked a nationwide debate
Animal Liberation 书名，同位语，解释说明的作用
要用ing形式没谓语了