——Did your friend accept your invitation? ——No, he ____ refused.
I can never forget the days _____ we worked together and the days ______ we spent happily together.
Mr. White told us _______ run up and down the hall.
Only when I left my parents for Italy _____ how much I loved them.
He is the man _________ you can turn when you are in trouble.
Look at the timetable (时刻表). Hurry up! Flight 4026 _______ off at 18:20.