I have bought two pens write well.A. none of whichB. neither of whichC. both of whichD.

问题补充：

I have bought two pens, write well.

A. none of which

B. neither of which

C. both of which

D. all of which

答案：

A. none of which

B. neither of which

(答案→)C. both of which

D. all of which

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