Read the quoted parts carefully and answer the questions in English."The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep."
What idea do the four lines express?
【正确答案】：
THE SPEAKER HAS THE PROMISES IN HIS MIND SO THAT HE WILL HAVE TO FULFILL HIS PROMISES BEFORE HE HAS HIS LAST REST.
【题目解析】：尽管树林可爱、幽暗而深远，在雪夜中令人流连忘返，可还未到就此停住的时候，还有尘世的责任与义务，生活的夙愿未完，不能任凭自己沉浸在幻想中。作者心中还有愿望未实现，所以是要达成夙愿之后才能做“最后的休息”。