一道英语题,选词填空,我们班上的同学产生了分歧

题目

一道英语题,选词填空,我们班上的同学产生了分歧
Most adults once studies at school, had classes and did their homework everyday. The same thing is going on at school now. ( )it seem that doing weekend homework is one problem for the modern students
给的词是 but 和 still ,到底填哪一个,请帮忙．

答案

转折就用BUT,递进就用STILL
现在看还不是很明显.需要更多的语境.
ADULTS原来也认为很难就是STILL,他们认为不难就是BUT