The producer comes regularly to collect the cameras _____ to our shop for quality problems.
________ many changes have _______, we should keep pace with the changes too.
The fire spread through the hotel very quickly but everyone ______ get out.
You can find many beautiful _____ ______ ten miles from here.
He said it was this classroom _______ he found his lost watch and _____ he would take good care of it from then on.
I was in a hurry at that moment and I just _______ the door. ______, I didn’t have a clear idea what the door was like.