Question

____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
我想知道B哪里错，I suggest Tom （should） go with me。也可以在suggest的后面加个that的啊·

Answer 1

B中do you suggest ,做的是插入语，可要可不要，去掉后成为who that should b that在这里当然不合适，而你举的例子是一个宾语从句，that做suggest 的宾语，代指Tom gowith me，当然可以加上

Answer 2

I suggest that Tom go with me.句中that与其后面部分构成同位语,均作宾语.而题目是对宾语部分提问,选项B中that恰恰多余,故应去掉that.