Report speech these questions: "What time does the train leave for Da Nang?" he asked

Report sppech these questions.
a."What time does the train leave for Da Nang?"he asked 
b."Where are your friends from?"she asked Mai
c."Where can I find my books,Peter?"I asked
d."When must I answer your questions?"I asked Mai
e."Who is going to help her with the work?"he asked me