哪些情况从句的谓语动词用should do答:1.表示"坚持(insist,urge),命令(order ,command),建议(advise,suggest,propose),要求(ask,beg,urge,require,request,demand),决心(decide,determine),同意(agree),安排(arrange)"等意义的动词引导的宾语从句的谓语须用should do的形式,should可以省略。例如:They agreed that the roof(should)be ...