“Please could you wake me up at 7 o’clock tomorrow morning?” I said to the doorman.
A.I said to the doorman if he wakes me up at 7 o’clock the following morning.
B.I said the doorman if he wakes me up at 7 o’clock in the following morning.
C.I asked the doorman whether he wakes me up at 7 o’clock in the following morning.
D.I asked the doorman to wake me up at 7 o’clock the following morning.