I suppose the right answer it should be did he study eng before he had travled to England? The use of past perfect is that when to give a specific time or period that the did is done before the following action had come after it. I had learned English before I started to learn French language. questions.could start with had or did. Did you start to learn French before you had learned English? Had you made dinner before she came? I'm sorry for the silly examples I gave you.
