SVA Rule #9. 

We use neither of before pronouns and plural countable nouns which have a determiner (my, his, the) before them. In formal styles, we use neither of with a singular verb when it is the subject.

Neither of us goes to the concert tomorrow.

 Example #18. 

Find the main subject and verb.

 Neither of the birthday cards was suitable


Click to see the correct answer Neither of the birthday cards was suitable.


 Example #19. 

They recorded two new albums, neither which are going to be sold well.

  2. neither of which is going
  3. neither which is going
  4. neither of which are going


Click to see the correct answer The correct answer is choice B.