The web is fantastic at many things—e-mail, e-merce, for example. But your name is Amazon or Google, making money has proved hard.
A. if
B. unless
C. although
D. as long as
网友回答
A. if
(答案→)B. unless
C. although
D. as long as
解析：考查连词：A. if如果，B. unless除了，C. although虽然，D. as long as只要，句意是：这个网站在很多事情上都很好，比方说：电子邮件，电子商务。但除非你的名字是亚马逊或是谷歌，否则挣钱证明很难。选B。