Question

The car ran into a crowd of middle school students, ________ to hospital immediately．

1. A.
   two of whom sent
2. B.
   two of them sent
3. C.
   two of whom are sent
4. D.
   two of them sending

Answer 1

B
考查定语从句与状语的区别。A项的语态不对，C项的时态不对。受伤的学生是被送往医院，故选B而不选D作状语。