Dialogue: M: I hate memorizing vocabulary. W: Well, it's part of learning a second language, so there is not whole lot you can do about it. Question: What does the woman tell the man? - He has to do what is necessary in order to learn. - He doesn't have to memorize all the vocabulary. - There is not much he can learn by memorizing.
The answer to this question is:
He has to do what is necessary in order to learn.