I often chat with my friends on the Internet. --- You are so smart. Will you please tell me_____?( ) 9. --- I often chat with my friends on the Internet.--- You are so smart. Will you please tell me ________? (2011青岛)A. how to do

I often chat with my friends on the Internet. --- You are so smart. Will you please tell me_____?( ) 9. --- I often chat with my friends on the Internet.--- You are so smart. Will you please tell me ________? (2011青岛)A. how to do
I often chat with my friends on the Internet. --- You are so smart. Will you please tell me_____?
( ) 9. --- I often chat with my friends on the Internet.
--- You are so smart. Will you please tell me ________? (2011青岛)
A. how to do B. how to do it
C. how to use D. when can I use it
为什么选B不选其他的

I often chat with my friends on the Internet. --- You are so smart. Will you please tell me_____?( ) 9. --- I often chat with my friends on the Internet.--- You are so smart. Will you please tell me ________? (2011青岛)A. how to do
答案：B 解析：tell me后接宾语从句,宾语从句要用陈述句语序,由此排除D（此项是疑问句语序）.又do和use是及物动词,后应接宾语,才能与how(副词）连用,因此排除A和C；只有B项中的do有宾语it,故可与how连用.故选B项.

你好~ 因为A C都缺乏谓语， 也就是缺少it D的意思不对。。。。