--Memorizing the words of pop songs ______one of the greatest ways to learn more English.
--Yes. And I’ve learned _______that way.
A. is, a lot of      B. are, a lot of       C. is, a lot       D are, a lot

--Memorizing the words of pop songs ______one of the greatest ways to learn more English.

--Yes. And I’ve learned _______that way.

A. is, a lot of      B. are, a lot of       C. is, a lot       D are, a lot

--Memorizing the words of pop songs ______one of the greatest ways to learn more English.
--Yes. And I’ve learned _______that way

1. A.
   is, a lot of
2. B.
   are, a lot of
3. C.
   is, a lot      
4. D.
   are, a lot