插入语通常用在两种情形中，（1）复杂疑问句/双重疑问句中。 疑问词+插入语（do you think /believe

插入语通常用在两种情形中，（1）复杂疑问句/双重疑问句中。 疑问词+插入语（do you think /believe /guess 等）+主语+其他？（2）定语从句和名词性从句中。
＿＿＿＿be sent to work there ?
A who do you suggest should B who do ypu suggest that should C do you suggest who should D do you suggest whom should
为什么选A啊 不符合（1 ）结构啊，suggest 不缺主语？