I LIKE READING BOOKS , ESPECIALLY THE --- ABOUT THE NATURAL WORLD

Question

9. I  like  reading  books  , especially  the --- about  the  natural  world.A. one B.       ones       C.  no  one       D.  things

Answer

9. I  like  reading  books  , especially  the --- about  the  natural  world.A. one B.       ones       C.  no  one       D.  things