—We can use QQ to talk with each other on the Internet.
—Really? But can you tell me it.
A. how I can use
B. how can I use
C. why can I use
D. when I can use
网友回答
(答案→)A. how I can use
B. how can I use
C. why can I use
D. when I can use
解析：英语宾语从句中一般为陈述语序。How引导宾语从句表示方式方法，做状语。Why表示原因，when表示时间。句意：我们可以用QQ在网上相互交谈。——真的吗？但是你能告诉我怎么用。结合语境可知选A。