—How many people are still leading ____ life under ___ poverty line in the world?

   —Perhaps one fourth.

    A. a, the      B. a, a       C. 不填， 不填      D. the, 不填

—How many people are still leading ____ life under ___ poverty line in the world?

   —Perhaps one fourth.

    A. a, the      B. a, a       C. 不填， 不填      D. the, 不填

—How many people are still leading ____ life under ___ poverty line in the world?

   —Perhaps one fourth.

    A. a, the      B. a, a       C. 不填， 不填      D. the, 不填

-----How many people are still leading______ life under __ poverty line in the world?

-----Perhaps one fourth, according to the report.

A.     the;/  B. a; the  C .a; a  D./the

—How many people are still leading ______ life under ________ poverty line in the world?
—Perhaps one fourth.