all of us enjoy playing computer games we can’t spend too much time on them.A. Although

问题补充：

all of us enjoy playing computer games, we can’t spend too much time on them.

A. Although, but

B. But, /

C. Although, /

D. But, although

答案：

A. Although, but

B. But, /

(答案→)C. Although, /

D. But, although

解析：本题的含义是虽然我们所有的人都喜欢电脑，但是我们不能花费太多的时间。Although 和but两者只能使用其一，前句式让步，后句是转折，故选C。