I have bought two ballpens writes well.A. none of themB. neither of themC. neither of whi

问题补充：

I have bought two ballpens， writes well.

A. none of them

B. neither of them

C. neither of which

D. none of which

答案：

A. none of them

B. neither of them

(答案→)C. neither of which

D. none of which

解析：因为是two ballpens，并且定语从句的谓语writes是单数概念。因此，C是正确选项。