Kids talk frequently about what they can do, many adults do the opposite, tending to talk about what they can’t and why.
A. and
B. so
C. while
D. however
网友回答
A. and
B. so
(答案→)C. while
D. however
解析：考查连词，A. and并且 B. so因此C. while当…时候，然而，D. however无论怎样，句意是;孩子经常谈论能做什么，而很多成年人真好相反，谈论的是他们不能做什么和为什么。这里用while表示“对比”。选C。