1.
(2019高三上·如东期末)
— How much do you know about your mother's love?
— To be honest, not until for my 18th birthday, a diary recording the process of my growth my mother loves me so much.
A . did I receive her gift; I realized
B . I received her gift; did I realize
C . I received her gift; had I realized
D . did I received her gift; I had realized