If she _____the Great Wall next Sunday, _____ I. [ ]
I don’t know if he ________ tomorrow?——If it ________ , he will come.
He arrived _________ Shanghai _________ 6:00 _________ the morning of June 2nd. [ ]
I got to Qingdao ______ the morning of October 16th last year. [ ]
Do you know a spaceship flies at about nineteen kilometers ________ second?