Question

be sent to work there? A. Who do you suggest B. Who do you suggest that should C.

be sent to work there?
A. Who do you suggest B. Who do you suggest that should
C. Do you suggest who should D. Do you suggest whom should
为什么选A，B为什么不可以，还是搞不懂

Answer 1

A选项中其实是有should 的，只是被省略了，完整的是who do you suggest (should) be sent to work there?
B 选项完整的句子是这样的who do you suggest that should be sent to work there?,仔细分析一下这个句子,you是主语，suggest 是谓语，who是宾语，而后面的that should be sent to work there是定语，说明who,而事实上，who就有somebody that的意思了，后面又有一个that就重复了。
所以不是should的问题，是that的问题

Answer 2

题目中其实按理论的句式应该是：do you suggest who should be……但是英语习惯把who/what等放在最前面来强调这个问题的重点（这个句式的重点要求对方回答who）
suggest +should +动词的宾语从句的虚拟用法（以前我们老师说这是虚拟用法，不知道你们是不是这么叫的）你应该知道了。就不说了
who/what do you think/suggest这种用作插入语在英语中有一个固定的语法名字（具体叫什么不记得了，很久没碰英语了），你就当做一个简单的插入条件，甚至是多余的干扰项（但要考虑对虚拟的影响），不做考虑，删除do you suggest 句式一样完整。这样的话这个题中就可以看做是：Who should be sent ……不用想的太多。一下就明了了。
do you think 也一样，比如who do you think is the tallest one？ 删除 do you think ，句式一样完整

Answer 3

suggest 在这句话里意为 建议 ， 后面可省略should, B项中suggest 后有了that就成了宾语从句，而前面的do you suggest 就成了插入语，插入语是可以去掉的，但根据题意，B项不能选。希望我的答案对你有帮助，祝你学习进步。

Answer 4

个人理解是这样的~ 因为suggest意为建议，那么既然要他提出建议，肯定是他觉得那个人应该被派遣去工作，他才会建议~
所以suggest和should会有点重复，选A比较好~

Answer 5

Do you suggest who should be sent to work there? 可以先按这种语序排列和理解，但是英语中
do you suggest(think,expect等)必须用作插入语，放在特殊疑问词后，构成句式：
What/Who do you suggest... ...?