【正确答案】：
BY USING SIMPLE SPOKEN LANGUAGE AND CONVERSATIONAL RHYTHMS, FROST ACHIEVED AN EFFORTLESS GRACE IN HIS STYLE. HE COMBINED TRADITIONAL VERSE FORMS——THE SONNET, RHYMING COUPLETS, BLANK VERSE—WITH A CLEAR AMERICAN LOCAL SPEECH RHYTHM, THE SPEECH OF NEW ENGLAND FARMERS WITH ITS IDIOSYNCRATIC DICTION AND SYNTAX. IN VERSE FORM HE WAS ASSORTED; HE WROTE IN BOTH THE METRICAL FORMS AND THE FREE VERSE, AND SOMETIMES HE WROTE IN A FORM THAT BORROWS FREELY FROM THE MERITS OF BOTH, IN A FORM THAT MIGHT BE CALLED SEMI-FREE OR SEMI-CONVENTIONAL.
【题目解析】：通过使用简单的口语和谈话节奏，弗洛斯特的风格轻松优雅。他将传统的诗歌形式——十四行诗、双行押韵、无韵诗——与清晰的美国本土语言节奏、新英格兰农民的语言及其独特的措辞和句法结合起来。在诗歌形式上，他是分类的;他以格律和自由诗的形式写作，有时他的写作形式自由地借用了两者的优点，这种形式可以被称为半自由或半传统。