Robert wishes that he ________ business instead of history when he was in university. 

—Pity you missed the lecture on nuclear pollution.—I _______ it ,but I was busy preparing for a job interview.

Naturally, after I tell my brother what to do, he ____ go and do the opposite．

—______ you pass the examination on the first attempt?—Of course. You know, I have been preparing for it for a long time.

Thank you very much. Without your help we ______ car started.