------ What happened to you yesterday evening? Why didn’t you finish your work?------____ the lights off, we could not continue our work. As a result, we had to leave.
______ fast did John run ______ I could hardly catch him.
It’s known to us all that the deeper you dive, ________ you can breathe.
It’s the third time _____ arrived late this month.
The Golden Gate Bridge, _______ several hundred years ago, is worldwide famous.
Paper produced every year is ______the world’s production of vehicles.