When McKie brings friends or volunteers to the area where she works, most of ________ spend the first day sobbing.

A．them

B．whom

C．that

D．which

下面程序的功能是：从输入的正整数中选3个数进行输出，要求这些数都是2的倍数，请填空。 main() { int a,i=0; scanf("%d",&a); do { if(a＞0&&a%2==0) {printf("%d\n",a);i++;} if(i!=3) { scanf("%d",&a);} }while(______); }