请选择ABC,g-R1A3Y9I)R3w3X8r3b6]4C,q,D:U ____are you going to go to the airport? At 7 o’clock tomorrow.*O8[5k0A'A/Q
A. Where*O8[5k0A'A/Q
B. Who*O8[5k0A'A/Q
C. When*O8[5k0A'A/Q