解释如下
有时,引导
表语从句的连词that可以省略
1. 连接词that一般不能省略,但当主句中含动词do的某种形式时,that可以省略。如:
What I want to do is (that) I can go up to him and thank him. 我想做的事是走到身边去感谢他。
2. 当句子的主语是:advice, demand, decision, desire, idea, insistence, instruction, order, plan, proposal, recommendation, request, requirement, suggestion, wish等名词时,表语从句须用
虚拟语气,即:should +do。如:
My advice is that you should go to apologize to him. 我的建议是你应该去向他道歉。本回答被提问者采纳