问题
选择题
Mother insisted that the child's hands ______ before dinner.
A．should wash
B．be washed
C．had been washed
D．would be washed
答案
答案：B
wash和hands之间构成动宾关系，hands作了that从句中的主语，所以谓语需用被动结构。insist作“坚持（某种观点或看法）”讲，后面宾语从句的谓语动词用虚拟语气，即should+动词原形，should可以省略。