has become。因为has后面要接动词的过去分词形式,动词become的过去分词是become,became是动词become的过去式。become作及物动词时意为“成为;变得;变成”,第三人称单数变化是becomes;现在分词形式是becoming。 1、has become的例句 The environment has become a very...
大学英语四级写作52种句型变换(3)大学英语四级写作，篇幅虽然不长，但是要写好并不容易。单词的选用，句型的灵活变换都能让阅卷老师印象深刻。21. 俗语说得好：...。Well goes an old s...
地道准确的短语运用能够为英语四六级的写作加分不少,这里为大家总结了写作中经常会用到的一些短语,希望能帮到你哦。 1. 接触各种思想/经历:be exposed to new ideas/experiences/problems 2. 人们认为:it is generally/widely believed/held/agreed that ...
更多内容请点击：has become还是has became