________who would like to go on the trip should put their names on the list.
A,Those B,These C,Somebody D,The ones
无法判定是A or D.
理由：1.those who这样的句子常听到.后者听到的较少.2.出题的老师和我们一样,不怎么见到过the ones who这样的说法,所以.3.the ones who一般出现在后面,前面有上文较好.如：We Are The Ones Who'll Show You The Door.By Lee Cary.
其实D也是正确的.有这样一篇文章,其标题就是：The Ones Who Walk Away From Omelas by Ursula K LeGuin 张汉熙版《高级英语》第2册文本资料第九
课.
我在网上还找到了：
Houghton Mifflin Harcourt Breakdown:“The Ones Who Left Are the Lucky Ones”
所以只能说：A是最佳选项.D也是正确的选项.