You only have to ask her in order to know what has happened.
You only have to call her in order to know whether she will come or not.
I only have to consult the digital dictionary in order to find out the meaning of a word I don’t know.
You only have to ask the teacher in order to solve the problem.
You only have to get some newspapers in order to find the advertisements you need.
Teacher: Have you started your report yet?
Student: I’m having a hard time getting the information.
Teacher: It’s so easy to get information these days.
Student: Then how can I get it?
Teacher: You only have to search the Internet in order to get the information you’re looking for.
Student: Oh, I didn’t think of that.