It's suggested/ advised/ demanded/ordered/requested/proposed/required/desired等结构后的主语从句中,谓语动词用(should) + 动词原形。 [注意3]suggest意思是"表明,暗示;说明"时;insist意思是"坚持观点,坚持看法"时,句子不能用虚拟语气。 [例句] He insisted that ...