IT/CERTAIN/DIE/FUTURE/IS/LEARN/PEOPLE/THAT/THEY/UNTIL/WILL/ A. IT...

46. It/certain/die/future/is/learn/people/that/they/until/will/

A. It is certain that people will learn future until they die. B. It is future people that will die until they

learn certain.

C. It is certain that future people will die until they learn

D. It is certain that future people will learn

until they die.