1.Can you tell me how to use search engine?
2.I don't know what to do with all this information.
3.We have to think about how to start prcticing.
4.The librarian has told us where to find the book.
5.Mr Fung didn't tell us when to do our presentation.
6.Students want to know where to buy the old Coke bottles.
7.We must find out where to ask for the infomation we need.