问题
选择题
China is developing fast. That's ________ I think those of my colleagues who deal with China affairs should visit China.
A．because
B．why
C．when
D．how
答案
答案：B
选B 考查表语从句。句意：中国在飞速发展，这也就是我认为我的那些跟中国打交道的同事应该访问中国的原因。