Despite the wide range of reading material specially written or _______ for language learning purposes, there is yet no comprehensive systematic program for the reading skills.

A．build more military facilities in Yemen
B．win a propaganda war on the Arabian Peninsula
C．deliver basics services to Yemen people
D．help Yemen develop its economy

A．American soldiers are patrolling Haitian streets.
B．International aid has reached most of the place in the capital.
C．Rescuers rely heavily on their hands to clear debris downtown.
D．The Haitian government will soon start a massive jobs program.