What fun it is to play with computer games!Don’t you think it’s waste of time?A.

问题补充：

--- What fun it is to play with computer games!

--- Don’t you think it’s waste of time?

A. a; a

B. /; a

C. /; the

D. the; the

答案：

A. a; a

(答案→)B. /; a

C. /; the

D. the; the

解析：fun为不可数名词，这里是泛指，故前面不用冠词a。waste 是可数名词浪费，这里也是泛指，故选B。