------Did you attend Professor Johnson’s lecture about the evolution of videos and sound devices?

------I wish I __________. I __________ a job interview with the UN.

A．had, had

B．had, was having

C．could, have had

D．could have, were having

冥王星与太阳的距离大约是五十九亿八千零五十万千米，这个数省略亿后面的尾数约是______亿千米．