I want to know ________ next.A. what to do it B. how to do C. what to do
Harry Potter is so interesting a book that lots of teenagers like to read _
— Could you please pass me the book?
—Merry Christmas! —_______.
The policeman caught the thief ______ has stolen Mr. Li’s computer.
—Miss Gao, I am feeling bored. Would you mind my ________ here? —You had better not, for smoking is forbidden in public now.