The public transport system in Beijing is very good now, so there _____be any difficulty in traveling around the city.
We ______ ; we followed the boss into the hall as his guests. How lucky we were!
It’s just _____among countries to host the Olympics as to win an Olympic Medal.
Do ____ you think is right, ____ difficulties you may have.
—Why can't I smoke here? —At no time__________ in the meeting-room
______ it is true that a student’s most important goal is to do well in his or her studies, it doesn’t need to be the only goal.