Though sending text messages or writing micro-blogs allows us to exchange thoughts, bits and pieces of online connection can’t for a “real conversation”.
A. change
B. tolerate
C. substitute
D. contribute
网友回答
A. change
B. tolerate
(答案→)C. substitute
D. contribute
解析：考查动词：A．change改变B．tolerate容忍C．substitute 代替D．contribute贡献，句意：虽然发送短信或写微博让我们交换想法，一点网上的联系不能代替真正的交流。选C。