By his teens,Charlie had,through his humour,become、actors作谓语的是哪部分?
问题描述：
By his teens,Charlie had,through his humour,become、actors作谓语的是哪部分?
答
had become ...actors 是谓语部分,因为become 是系动词,系表结构共同构成谓语那through his humour做什么语？