The old man has three sons，and two _____ are doctors．
| A．of which | B．of whom | C．of them | D．of that |
相关知识点
推荐试卷
The old man has three sons，and two _____ are doctors．
| A．of which | B．of whom | C．of them | D．of that |
试题篮
()
粤公网安备 44130202000953号
