—Could you tell me ________?—"Rome is not built in a day." You should try to
—Could you tell me ________?
—"Rome is not built in a day." You should try to give it enough chances to become strong.
A. What can I do to have a good memory
B. what I can do to have a good memory
C. why I should have a good memory
D. how I can do to have a good memory