The old lady had two clever sons did a good job in the National College Entrance Ex

问题补充：

The old lady had two clever sons, did a good job in the National College Entrance Exam, though.

A. none of them

B. both of whom

C. none of whom

D. neither of whom

答案：

A. none of them

B. both of whom

C. none of whom

(答案→)D. neither of whom

解析：本题的含义为虽然老太太有两个聪明的儿子，但没有一个在的大学生入学考试中做得好，neither表示两个一个也不，故本题选D。