It was not _______ she took off her dark glasses _______ I realized she was a famous film star.
Making _______ good impression on the interviewers is of ________ vital importance.
--- You have not lost your heart, then? --- ________. I will try again.
Opposite the old town is the 5500 meters Yulong Xueshan Mountain, its peak_______ with snow.
John opened the door. There_______ he had never seen before.
_______over everything whenever we want to make a decision, many people believe, and we will have less chance of making mistakes.