问题
选择题
The car ran into a crowd of middle school students, ______to hospital immediately.
A．two of whom sent
B．two of them sending
C．two of whom are sent
D．two of them sent
答案
答案：D
考查独立主格结构。两学生被送往医院所以应该用过去分词。C选项为定语从句但是时态不正确应用过去时。所以选D。