15. It’s only by travelling or living in a country and getting to know its inhabitants and their language _________ one can find out _________ a country and its people are like.

       A. what, what               B. that, what                 C. that, how               D. how, what

It’s only by travelling or living in a country and getting to know its inhabitants and their language _________ one can find out _________ a country and its people are like.

　 A. what, what　　　 B. that, what　　　 C. that, how　　 　 D. how, what

15. It’s only by travelling or living in a country and getting to know its inhabitants and their language _________ one can find out _________ a country and its people are like.