2019年mpacc考试英语真题——冠词220

{01}Drinking water, which is ______ must for any human to survive, has to be stored based
on ______ number of people in the household.

A.the; a
B.a; the
C./; the
D.the; the
解析：
本题选B。

{02}It"s __________ great fun to talk with you because I think it"s _________ enjoyable experience.
  [     ]
A.a,/        
B.the, a      
C./ , an      
D.a, an
解析：
本题选C。