Do you have any difficulty ________?
If we ___ the other road ,we might have arrived here in time for the meeting.
Studies show that people are more_______to suffer from back problems if they always sit before computer screens for long hours.
______ in my life impressed me so deeply as my first visit to the Palace Museum.
We _______ on this project for four hours. Let’s have a rest.
What the doctor really doubt is_____my mother will revover from the serious disease soon.