Let the litter children ____quiet A is B are C be D am

Let the litter children ____quiet A is B are C be D am
Let the litter children ____quiet A is B are C be D am

Let the litter children ____quiet A is B are C be D am
Let the litter children __C be __quiet

选项C~~
Let the litter children be quiet

正确：C
let sb. do....
let后接动词的原形，am/is/are的原形就是be。另外比较：little 少的；小的； litter 垃圾。