many people first go to the Internet for information, it is not always the best place for what you need.
A. As
B. Since
C. When
D. While
网友回答
A. As
B. Since
C. When
(答案→)D. While
解析：考查连词。A. 由于，B. 自从……以来C. 当……时，考虑到D. 虽然，当……时。句意：虽然人们首先是上网查信息，但这并不总是找你需要的东西的好地方。故选D。