The man who was being followed stopped from time to time ____ he wanted to tie his shoelaces.
.--- ______,he knows a lot of things.
The play had already been on for quite some time when we __ at the New Theatre.
Once again he didn’t hand in his homework _____ he had been given enough time to do it.
--- They live on a busy road. --- There ______ be a lot of noise from the traffic.
_____ the chapter four times, I finally understood the author's theory.