--Do you live by yourself, Mr. Wang?

--Yes. I have two sons, but ________ of them lives with me. They are now studying in America.

1. A.
   neither
2. B.
   both
3. C.
   none
4. D.
   either

?Do you live by yourself, Mr Wang?

?Yes, I have two sons. But ________ of them lives with me. They are now studying in America.

A. neither

B. both

C. none

D. either