has become 是什么 用法.John Kent says the deal has become a necessary result of defence .has,have 后跟的 动词原形,这种用法在VOA听力中出现过多次.请问这是什么用法?不是完成时态吗?

become doing有这个用法吗?become用法是什么? has become 是什么 用法.John Kent says the deal has become a necessary result of defence .has,have 后跟的 动词原形,这种用法在VOA听力中出现过多次.请问这是什么用法?不是完成时态吗? 为什么become前加have?（Cycling has become my favourite.）这是什么用法?RT.是不是在动词（联系动词?）前可以加have?求教, education has become a priority for many parents seeking to secure a good future for their childrenseeking to 是什么用法 句子开头的N-ing形式是什么语法用法?此句:Finding ways to assists this growing homeless populations has become increasing difficult.开头的Finding是什么语法? become作为“变得”的词性是不及物动词,become的用法是什么? become的用法 Jo Calderone翻译成中文是什么? he has become a an excerpt of what has become known as the cross of goldspeech follows 翻译和 of what 用法 Once these,has become the When loneliness has become a English has become the national it has become 怎么用 英语翻译nantong has become [ ] [ ] [ ] kites [ ] [ ] [ ]. has+become能这样用吗?这是什么时态?在李阳疯狂英语上写着的：Now the singer has become a national star. become 和been的用法it has( )the most popular chocolate in britain and around the world.里面是填become还是been啊我本来是填写become的可是答案是been谁能说下理由啊 英语翻译Host become you ,成为你的主人,这是什么用法.