问题补充：
our horizons of thinking, but it also saves us time and energy.
A. Not only does the Internet expand
B. Not only expands the Internet
C. Not only the Internet expands
D. Not only the Internet does expand
答案：
(答案→)A. Not only does the Internet expand
B. Not only expands the Internet
C. Not only the Internet expands
D. Not only the Internet does expand
解析：
