单项选择题
You have talked much, （）you haven’t come to the point.
A. so B. but C. for D. still
单项选择题 Lanzhou is no longer （）
单项选择题 —Don’t look down upon Bob. He has his own advantages. —Oh, yes. （）others are weak, he is strong.
单项选择题 You should visit the part of the country when ______.
