162. Concerned at the increase in accident fatalities,

Tennessee adopted a child-passenger protection law requiring the parents of children under four years of age to be restrained in a child safety seat.

(A) the parents of children under four years of age to be restrained in a child safety seat

(B) the restraint of parents of children under four years of age in a child safety seat

(C) that parents restrain children under four years of age in a child safety seat

(D) that children be restrained under four years of age in a child safety seat by their parents

(E) children to be restrained under four years of age by their parents in a child safety seat

按照tony的语法总结，require只有3种正确用法，但是正确答案C中明显是require that用法，不包括在3种用法之中啊？C/D是不是同样省略了should？另外，ETS的解释说Choices D and E misplace the phrase under four years of age so the phrase dangles and seems to modify restrained rather than children. 觉得D如果用children做分句主语，under four years of age的位置并没有放错啊，解释成D用children做主语不如parents来得合适不是更好.

require的确是只有3中用法啊

require sb. to do sth.

require that + (should) do 虚拟 ,should必须省略

require of sb. that

这里用到的第二种,而且主动优于被动,所以选C